12637866899564 has 12 divisors (see below), whose sum is σ = 22116413762688. Its totient is φ = 6318891538800.

The previous prime is 12637866899563. The next prime is 12637866899597. The reversal of 12637866899564 is 46599866873621.

It is a super-3 number, since 3×12637866899564³ (a number of 40 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (12637866899563) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9794327 + ... + 11009294.

It is an arithmetic number, because the mean of its divisors is an integer number (1843034480224).

Almost surely, 2^{12637866899564} is an apocalyptic number.

It is an amenable number.

12637866899564 is a deficient number, since it is larger than the sum of its proper divisors (9478546863124).

12637866899564 is a wasteful number, since it uses less digits than its factorization.

12637866899564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20955496 (or 20955494 counting only the distinct ones).

The product of its digits is 5643509760, while the sum is 80.

The spelling of 12637866899564 in words is "twelve trillion, six hundred thirty-seven billion, eight hundred sixty-six million, eight hundred ninety-nine thousand, five hundred sixty-four".