117720850805776 has 15 divisors (see below), whose sum is σ = 228084232523133. Its totient is φ = 58860403703040.

The previous prime is 117720850805771. The next prime is 117720850805807. The reversal of 117720850805776 is 677508058027711.

The square root of 117720850805776 is 10849924.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 114342900879376 + 3377949926400 = 10693124^2 + 1837920^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (117720850805771) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 42043456 + ... + 44755936.

Almost surely, 2^{117720850805776} is an apocalyptic number.

117720850805776 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

117720850805776 is the 10849924-th square number.

It is an amenable number.

117720850805776 is a deficient number, since it is larger than the sum of its proper divisors (110363381717357).

117720850805776 is an frugal number, since it uses more digits than its factorization.

117720850805776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5424970 (or 2712483 counting only the distinct ones).

The product of its (nonzero) digits is 46099200, while the sum is 64.

The spelling of 117720850805776 in words is "one hundred seventeen trillion, seven hundred twenty billion, eight hundred fifty million, eight hundred five thousand, seven hundred seventy-six".