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.