315512064633065 has 4 divisors (see below), whose sum is σ = 378614477559684. Its totient is φ = 252409651706448.

The previous prime is 315512064632981. The next prime is 315512064633091. The reversal of 315512064633065 is 560336460215513.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 44725424917849 + 270786639715216 = 6687707^2 + 16455596^2 .

It is a cyclic number.

It is not a de Polignac number, because 315512064633065 - 2²⁰ = 315512063584489 is a prime.

It is a Duffinian 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, 31551206463302 + ... + 31551206463311.

It is an arithmetic number, because the mean of its divisors is an integer number (94653619389921).

Almost surely, 2^{315512064633065} is an apocalyptic number.

It is an amenable number.

315512064633065 is a deficient number, since it is larger than the sum of its proper divisors (63102412926619).

315512064633065 is an equidigital number, since it uses as much as digits as its factorization.

315512064633065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63102412926618.

The product of its (nonzero) digits is 5832000, while the sum is 50.

The spelling of 315512064633065 in words is "three hundred fifteen trillion, five hundred twelve billion, sixty-four million, six hundred thirty-three thousand, sixty-five".