117857104656 has 40 divisors (see below), whose sum is σ = 305130467424. Its totient is φ = 39199729920.

The previous prime is 117857104579. The next prime is 117857104693. The reversal of 117857104656 is 656401758711.

It is a junction number, because it is equal to n+sod(n) for n = 117857104599 and 117857104608.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2664450 + ... + 2708321.

Almost surely, 2^117857104656 is an apocalyptic number.

117857104656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

117857104656 is an abundant number, since it is smaller than the sum of its proper divisors (187273362768).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

117857104656 is a wasteful number, since it uses less digits than its factorization.

117857104656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5373239 (or 5373233 counting only the distinct ones).

The product of its (nonzero) digits is 1411200, while the sum is 51.

The spelling of 117857104656 in words is "one hundred seventeen billion, eight hundred fifty-seven million, one hundred four thousand, six hundred fifty-six".