118188660 has 24 divisors (see below), whose sum is σ = 330928416. Its totient is φ = 31516960.

The previous prime is 118188617. The next prime is 118188671. The reversal of 118188660 is 66881811.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 984846 + ... + 984965.

It is an arithmetic number, because the mean of its divisors is an integer number (13788684).

Almost surely, 2^118188660 is an apocalyptic number.

118188660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

118188660 is an abundant number, since it is smaller than the sum of its proper divisors (212739756).

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

118188660 is a wasteful number, since it uses less digits than its factorization.

118188660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1969823 (or 1969821 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 39.

The square root of 118188660 is about 10871.4608034063. The cubic root of 118188660 is about 490.7480729558.

The spelling of 118188660 in words is "one hundred eighteen million, one hundred eighty-eight thousand, six hundred sixty".