118643172264 has 24 divisors (see below), whose sum is σ = 321325258410. Its totient is φ = 39547724064.

The previous prime is 118643172229. The next prime is 118643172283. The reversal of 118643172264 is 462271346811.

118643172264 is a `hidden beast` number, since 1 + 18 + 64 + 317 + 2 + 264 = 666.

It can be written as a sum of positive squares in only one way, i.e., 114283211364 + 4359960900 = 338058^2 + 66030^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 823910847 + ... + 823910990.

Almost surely, 2^118643172264 is an apocalyptic number.

It is an amenable number.

118643172264 is an abundant number, since it is smaller than the sum of its proper divisors (202682086146).

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

118643172264 is a wasteful number, since it uses less digits than its factorization.

118643172264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1647821849 (or 1647821842 counting only the distinct ones).

The product of its digits is 387072, while the sum is 45.

The spelling of 118643172264 in words is "one hundred eighteen billion, six hundred forty-three million, one hundred seventy-two thousand, two hundred sixty-four".