Question: What do you call 1 followed by 100 zeros?

Cesar Lopez-Monsalvo answered on 17 Jun 2011:

This one is called a googol. It is a fun number, but if you want to go big, look for a googolplex 😉 It is so insanely large that we could try to write it continuously and the diameter of the observable universe would still fall short (way short) to write all the zeros. However, in terms of pure mathematics, it is still very short compared with infinitely large numbers.