117866256 has 20 divisors (see below), whose sum is σ = 304487952. Its totient is φ = 39288736.

The previous prime is 117866233. The next prime is 117866261. The reversal of 117866256 is 652668711.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1227726 + ... + 1227821.

Almost surely, 2^117866256 is an apocalyptic number.

117866256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

117866256 is an abundant number, since it is smaller than the sum of its proper divisors (186621696).

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

117866256 is a wasteful number, since it uses less digits than its factorization.

117866256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2455558 (or 2455552 counting only the distinct ones).

The product of its digits is 120960, while the sum is 42.

The square root of 117866256 is about 10856.6226792682. The cubic root of 117866256 is about 490.3014332992.

The spelling of 117866256 in words is "one hundred seventeen million, eight hundred sixty-six thousand, two hundred fifty-six".