12504660651 has 48 divisors (see below), whose sum is σ = 20968197120. Its totient is φ = 7033158720.

The previous prime is 12504660647. The next prime is 12504660671. The reversal of 12504660651 is 15606640521.

12504660651 is a `hidden beast` number, since 1 + 2 + 5 + 0 + 46 + 606 + 5 + 1 = 666.

It is not a de Polignac number, because 12504660651 - 2² = 12504660647 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12504660611) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3169386 + ... + 3173328.

It is an arithmetic number, because the mean of its divisors is an integer number (436837440).

Almost surely, 2^12504660651 is an apocalyptic number.

12504660651 is a deficient number, since it is larger than the sum of its proper divisors (8463536469).

12504660651 is a wasteful number, since it uses less digits than its factorization.

12504660651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4736 (or 4733 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The spelling of 12504660651 in words is "twelve billion, five hundred four million, six hundred sixty thousand, six hundred fifty-one".