117671556 has 12 divisors (see below), whose sum is σ = 274566992. Its totient is φ = 39223848.

The previous prime is 117671551. The next prime is 117671591. The reversal of 117671556 is 655176711.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×117671556² = 27693190182922272, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (117671551) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4902970 + ... + 4902993.

Almost surely, 2^117671556 is an apocalyptic number.

It is an amenable number.

117671556 is an abundant number, since it is smaller than the sum of its proper divisors (156895436).

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

117671556 is a wasteful number, since it uses less digits than its factorization.

117671556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9805970 (or 9805968 counting only the distinct ones).

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

The square root of 117671556 is about 10847.6520961911. The cubic root of 117671556 is about 490.0313127289.

The spelling of 117671556 in words is "one hundred seventeen million, six hundred seventy-one thousand, five hundred fifty-six".