319315664 has 20 divisors (see below), whose sum is σ = 621034656. Its totient is φ = 159048672.

The previous prime is 319315649. The next prime is 319315669. The reversal of 319315664 is 466513913.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (319315669) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33734 + ... + 42149.

Almost surely, 2^319315664 is an apocalyptic number.

It is an amenable number.

319315664 is a deficient number, since it is larger than the sum of its proper divisors (301718992).

319315664 is a wasteful number, since it uses less digits than its factorization.

319315664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76154 (or 76148 counting only the distinct ones).

The product of its digits is 58320, while the sum is 38.

The square root of 319315664 is about 17869.4058099311. The cubic root of 319315664 is about 683.5024481425.

The spelling of 319315664 in words is "three hundred nineteen million, three hundred fifteen thousand, six hundred sixty-four".