117571656 has 16 divisors (see below), whose sum is σ = 293929200. Its totient is φ = 39190544.

The previous prime is 117571637. The next prime is 117571661. The reversal of 117571656 is 656175711.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2449386 + ... + 2449433.

It is an arithmetic number, because the mean of its divisors is an integer number (18370575).

Almost surely, 2^117571656 is an apocalyptic number.

It is an amenable number.

117571656 is an abundant number, since it is smaller than the sum of its proper divisors (176357544).

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

117571656 is a wasteful number, since it uses less digits than its factorization.

117571656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4898828 (or 4898824 counting only the distinct ones).

The product of its digits is 44100, while the sum is 39.

The square root of 117571656 is about 10843.0464353889. The cubic root of 117571656 is about 489.8925989793.

The spelling of 117571656 in words is "one hundred seventeen million, five hundred seventy-one thousand, six hundred fifty-six".