Googolplex
A googolplex is the number 10googol, equivalent to 1010100 or 10Ten duotrigintillion or 1010,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000.
Like the number googol, googolplex was thought of by Milton Sirotta, the nephew of mathematician Edward Kasner.
The company Google named their headquarters, the Googleplex, after the number.
A googolplexplex is a 1 followed by a Googolplex amount of zeros which is 10googolplex (101010100 ).