315666012 has 12 divisors (see below), whose sum is σ = 736554056. Its totient is φ = 105222000.

The previous prime is 315665983. The next prime is 315666037. The reversal of 315666012 is 210666513.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×315666012² = 199290062263968288, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13152739 + ... + 13152762.

Almost surely, 2^315666012 is an apocalyptic number.

It is an amenable number.

315666012 is an abundant number, since it is smaller than the sum of its proper divisors (420888044).

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

315666012 is a wasteful number, since it uses less digits than its factorization.

315666012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26305508 (or 26305506 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 315666012 is about 17766.9922046474. The cubic root of 315666012 is about 680.8884091597. Note that the first 3 decimals are identical.

The spelling of 315666012 in words is "three hundred fifteen million, six hundred sixty-six thousand, twelve".