116687556 has 72 divisors (see below), whose sum is σ = 313709760. Its totient is φ = 36489024.

The previous prime is 116687551. The next prime is 116687563. The reversal of 116687556 is 655786611.

116687556 is a `hidden beast` number, since 1 + 16 + 6 + 87 + 556 = 666.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (116687551) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 42555 + ... + 45213.

It is an arithmetic number, because the mean of its divisors is an integer number (4357080).

Almost surely, 2^116687556 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 116687556, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (156854880).

116687556 is an abundant number, since it is smaller than the sum of its proper divisors (197022204).

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

116687556 is a wasteful number, since it uses less digits than its factorization.

116687556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2745 (or 2740 counting only the distinct ones).

The product of its digits is 302400, while the sum is 45.

The square root of 116687556 is about 10802.2014422987. The cubic root of 116687556 is about 488.6615646623.

The spelling of 116687556 in words is "one hundred sixteen million, six hundred eighty-seven thousand, five hundred fifty-six".