665112315 has 32 divisors (see below), whose sum is σ = 1217189376. Its totient is φ = 303805440.

The previous prime is 665112307. The next prime is 665112323. The reversal of 665112315 is 513211566.

It is an interprime number because it is at equal distance from previous prime (665112307) and next prime (665112323).

It is not a de Polignac number, because 665112315 - 2³ = 665112307 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 217195 + ... + 220235.

It is an arithmetic number, because the mean of its divisors is an integer number (38037168).

Almost surely, 2^665112315 is an apocalyptic number.

665112315 is a deficient number, since it is larger than the sum of its proper divisors (552077061).

665112315 is a wasteful number, since it uses less digits than its factorization.

665112315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5139.

The product of its digits is 5400, while the sum is 30.

The square root of 665112315 is about 25789.7715189569. The cubic root of 665112315 is about 872.9010107815.

The spelling of 665112315 in words is "six hundred sixty-five million, one hundred twelve thousand, three hundred fifteen".