319501664 has 48 divisors (see below), whose sum is σ = 638668800. Its totient is φ = 157322880.

The previous prime is 319501631. The next prime is 319501747. The reversal of 319501664 is 466105913.

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, 834017 + ... + 834399.

It is an arithmetic number, because the mean of its divisors is an integer number (13305600).

Almost surely, 2^319501664 is an apocalyptic number.

It is an amenable number.

319501664 is a deficient number, since it is larger than the sum of its proper divisors (319167136).

319501664 is a wasteful number, since it uses less digits than its factorization.

With its successor (319501665) it forms a Ruth-Aaron pair, since the sum of their distinct prime factors is the same (715).

With its successor (319501665) it forms an eRAP, since the sums of their prime factors are consecutive (723 and 724).

319501664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 723 (or 715 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 319501664 is about 17874.6094782515. The cubic root of 319501664 is about 683.6351347941.

The spelling of 319501664 in words is "three hundred nineteen million, five hundred one thousand, six hundred sixty-four".