315516564454144 has 36 divisors (see below), whose sum is σ = 629802862809904. Its totient is φ = 157757726020608.

The previous prime is 315516564454103. The next prime is 315516564454151. The reversal of 315516564454144 is 441454465615513.

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, 76071874 + ... + 80112190.

Almost surely, 2^{315516564454144} is an apocalyptic number.

It is an amenable number.

315516564454144 is a deficient number, since it is larger than the sum of its proper divisors (314286298355760).

315516564454144 is an equidigital number, since it uses as much as digits as its factorization.

315516564454144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4345380 (or 4345366 counting only the distinct ones).

The product of its digits is 69120000, while the sum is 58.

The spelling of 315516564454144 in words is "three hundred fifteen trillion, five hundred sixteen billion, five hundred sixty-four million, four hundred fifty-four thousand, one hundred forty-four".