12965515315 has 16 divisors (see below), whose sum is σ = 16099070400. Its totient is φ = 10012286592.

The previous prime is 12965515309. The next prime is 12965515349. The reversal of 12965515315 is 51351556921.

It is a cyclic number.

It is not a de Polignac number, because 12965515315 - 2³¹ = 10818031667 is a prime.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 776626 + ... + 793144.

It is an arithmetic number, because the mean of its divisors is an integer number (1006191900).

Almost surely, 2^12965515315 is an apocalyptic number.

12965515315 is a deficient number, since it is larger than the sum of its proper divisors (3133555085).

12965515315 is a wasteful number, since it uses less digits than its factorization.

12965515315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21966.

The product of its digits is 202500, while the sum is 43.

The spelling of 12965515315 in words is "twelve billion, nine hundred sixty-five million, five hundred fifteen thousand, three hundred fifteen".