18800164 has 24 divisors (see below), whose sum is σ = 35265888. Its totient is φ = 8737920.

The previous prime is 18800153. The next prime is 18800179. The reversal of 18800164 is 46100881.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3979 + ... + 7309.

It is an arithmetic number, because the mean of its divisors is an integer number (1469412).

Almost surely, 2^18800164 is an apocalyptic number.

It is an amenable number.

18800164 is a deficient number, since it is larger than the sum of its proper divisors (16465724).

18800164 is a wasteful number, since it uses less digits than its factorization.

18800164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3435 (or 3433 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 28.

The square root of 18800164 is about 4335.9155895843. The cubic root of 18800164 is about 265.9013522308.

The spelling of 18800164 in words is "eighteen million, eight hundred thousand, one hundred sixty-four".