en.wikipedia.org/wiki/Names_of_large_numbers

Usage of names of large numbers. Some names of large numbers, such as million, billion, and trillion, have real referents in human experience, and are encountered in many contexts. At times, the names of large numbers have been forced into common usage as a result of hyperinflation.

simple.wikipedia.org/wiki/Names_for_large_numbers

Naming very large numbers is relatively easy. There are two main ways of naming a number: scientific notation and naming by grouping. For example, the number 500 000 000 000 000 000 000 can be called 5 x 10 20 in scientific notation since there are 20 zeros behind the 5. If the number is named by grouping, it is five hundred quintillion or 500 trillion ().

www.thealmightyguru.com/Pointless/BigNumbers.html

Ever wonder what a number with 228 zeros after it is called? No? Well who asked you anyway? Actually, it's called a quinseptuagintillion. Duh! Here is a list of all the big numbers up till the infamous centillion. Just some more incredibly useless trivia for you from TheAlmightyGuru.

www.britannica.com/topic/large-numbers-1765137

Large numbers are numbers above one million that are usually represented either with the use of an exponent such as 109 or by terms such as billion or thousand millions that frequently differ from system to system. The American system of numeration for denominations above one million was modeled on

home.kpn.nl/vanadovv/BignumbyN.html

How to name large numbers Suppose you want to know how to express 600 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 in words. The best way to do this is the scientific way: 6 x 10 62 - six times ten to the power of sixty-two. Everybody who has had one or two years of education beyond elementary school will understand this.

chalkdustmagazine.com/blog/names-large-numbers

But in order to get that incredibly large number—in fact, probably the largest number you’ve ever seen—we need to get a bit physical. Read about it here. This number even dwarves a googolplex, the largest number to have a name. The naming of this number is left as an exercise to the reader.

mathcats.com/explore/reallybignumbers.html

The Math Cats name large numbers the American way. Many countries in Europe use another system. The MegaPenny Project shows you lots and lots of pennies, up to one quintillion! And there's a chart showing how to name numbers up to 1 followed by 120 zeros. (After your visit, close the MegaPenny Project window to return to Math Cats.)

blog.prepscholar.com/what-comes-after-trillion

The next number after trillion is quadrillion, or a 1 with 15 zeros after it: 1,000,000,000,000,000. Knowing the names of large numbers can be useful if you're working with extremely large values or doing higher-level mathematics.

en.wikipedia.org/wiki/Large_number

Large numbers are numbers that are significantly larger than those ordinarily used in everyday life, for instance in simple counting or in monetary transactions. The term typically refers to large positive integers, or more generally, large positive real numbers, but it may also be used in other contexts.The study of nomenclature and properties of large numbers is sometimes called googology.

www.thefreedictionary.com/large+number

The former -- if at least they would assert their claim to be really and truly Circles, and not mere high-class Polygons with an infinitely large number of infinitesimally small sides -- were in the habit of boasting (what Women confessed and deplored) that they also had no sides, being blessed with a perimeter of one line, or, in other words, a Circumference.