12504660642 has 48 divisors (see below), whose sum is σ = 27577978272. Its totient is φ = 4094038080.

The previous prime is 12504660611. The next prime is 12504660647. The reversal of 12504660642 is 24606640521.

12504660642 is a `hidden beast` number, since 1 + 2 + 5 + 0 + 4 + 6 + 6 + 0 + 642 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 12504660597 and 12504660606.

It is not an unprimeable number, because it can be changed into a prime (12504660647) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 403542 + ... + 433422.

It is an arithmetic number, because the mean of its divisors is an integer number (574541214).

Almost surely, 2^12504660642 is an apocalyptic number.

12504660642 is an abundant number, since it is smaller than the sum of its proper divisors (15073317630).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12504660642 is a wasteful number, since it uses less digits than its factorization.

12504660642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30303 (or 30300 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The spelling of 12504660642 in words is "twelve billion, five hundred four million, six hundred sixty thousand, six hundred forty-two".