Googol

The googol is equal to $$10^{100}$$using exponentiation. It is one of the oldest numbers coined, in 1920. It was named after a TV show character at the time.

Written out in decimal form Googol is:

$$10,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000$$