12651401515 has 16 divisors (see below), whose sum is σ = 15293642400. Its totient is φ = 10046571520.

The previous prime is 12651401507. The next prime is 12651401533. The reversal of 12651401515 is 51510415621.

It is not a de Polignac number, because 12651401515 - 2³ = 12651401507 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1344507 + ... + 1353883.

It is an arithmetic number, because the mean of its divisors is an integer number (955852650).

Almost surely, 2^12651401515 is an apocalyptic number.

12651401515 is a deficient number, since it is larger than the sum of its proper divisors (2642240885).

12651401515 is a wasteful number, since it uses less digits than its factorization.

12651401515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11342.

The product of its (nonzero) digits is 6000, while the sum is 31.

The spelling of 12651401515 in words is "twelve billion, six hundred fifty-one million, four hundred one thousand, five hundred fifteen".