117491855256 has 48 divisors (see below), whose sum is σ = 320046489360. Its totient is φ = 38937566400.

The previous prime is 117491855233. The next prime is 117491855269. The reversal of 117491855256 is 652558194711.

117491855256 is a `hidden beast` number, since 1 + 1 + 74 + 9 + 18 + 552 + 5 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4703820 + ... + 4728731.

It is an arithmetic number, because the mean of its divisors is an integer number (6667635195).

Almost surely, 2^117491855256 is an apocalyptic number.

It is an amenable number.

117491855256 is an abundant number, since it is smaller than the sum of its proper divisors (202554634104).

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

117491855256 is a wasteful number, since it uses less digits than its factorization.

117491855256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9432736 (or 9432729 counting only the distinct ones).

The product of its digits is 3024000, while the sum is 54.

The spelling of 117491855256 in words is "one hundred seventeen billion, four hundred ninety-one million, eight hundred fifty-five thousand, two hundred fifty-six".