320615164 has 24 divisors (see below), whose sum is σ = 566829648. Its totient is φ = 158670720.

The previous prime is 320615159. The next prime is 320615173. The reversal of 320615164 is 461516023.

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, 341704 + ... + 342640.

It is an arithmetic number, because the mean of its divisors is an integer number (23617902).

Almost surely, 2^320615164 is an apocalyptic number.

It is an amenable number.

320615164 is a deficient number, since it is larger than the sum of its proper divisors (246214484).

320615164 is a wasteful number, since it uses less digits than its factorization.

320615164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1725 (or 1723 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 320615164 is about 17905.7299208940. The cubic root of 320615164 is about 684.4283962953.

The spelling of 320615164 in words is "three hundred twenty million, six hundred fifteen thousand, one hundred sixty-four".