164512044 has 18 divisors (see below), whose sum is σ = 415849980. Its totient is φ = 54837336.

The previous prime is 164512039. The next prime is 164512063. The reversal of 164512044 is 440215461.

164512044 is a `hidden beast` number, since 1 + 6 + 451 + 204 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a junction number, because it is equal to n+sod(n) for n = 164511999 and 164512017.

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, 2284854 + ... + 2284925.

Almost surely, 2^164512044 is an apocalyptic number.

It is an amenable number.

164512044 is an abundant number, since it is smaller than the sum of its proper divisors (251337936).

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

164512044 is a wasteful number, since it uses less digits than its factorization.

164512044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4569789 (or 4569784 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 164512044 is about 12826.2248537908. The cubic root of 164512044 is about 547.9394457749.

It can be divided in two parts, 1645 and 12044, that added together give a square (13689 = 117²).

The spelling of 164512044 in words is "one hundred sixty-four million, five hundred twelve thousand, forty-four".