118640566512 has 120 divisors (see below), whose sum is σ = 370812957424. Its totient is φ = 36504774144.

The previous prime is 118640566511. The next prime is 118640566529. The reversal of 118640566512 is 215665046811.

118640566512 is a `hidden beast` number, since 1 + 1 + 86 + 4 + 0 + 56 + 6 + 512 = 666.

It is a super-2 number, since 2×118640566512² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118640566511) 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, 1123093 + ... + 1224180.

Almost surely, 2^118640566512 is an apocalyptic number.

118640566512 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

118640566512 is an abundant number, since it is smaller than the sum of its proper divisors (252172390912).

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

118640566512 is a wasteful number, since it uses less digits than its factorization.

118640566512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2347309 (or 2347291 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 45.

The spelling of 118640566512 in words is "one hundred eighteen billion, six hundred forty million, five hundred sixty-six thousand, five hundred twelve".