315665320 has 32 divisors (see below), whose sum is σ = 711151200. Its totient is φ = 126105408.

The previous prime is 315665269. The next prime is 315665321. The reversal of 315665320 is 23566513.

It is not an unprimeable number, because it can be changed into a prime (315665321) by changing a digit.

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, 29767 + ... + 38953.

It is an arithmetic number, because the mean of its divisors is an integer number (22223475).

Almost surely, 2^315665320 is an apocalyptic number.

It is an amenable number.

315665320 is an abundant number, since it is smaller than the sum of its proper divisors (395485880).

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

315665320 is a wasteful number, since it uses less digits than its factorization.

315665320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10057 (or 10053 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 31.

The square root of 315665320 is about 17766.9727303218. The cubic root of 315665320 is about 680.8879116136.

The spelling of 315665320 in words is "three hundred fifteen million, six hundred sixty-five thousand, three hundred twenty".