12663631264 has 24 divisors (see below), whose sum is σ = 25127843328. Its totient is φ = 6281956800.

The previous prime is 12663631259. The next prime is 12663631291. The reversal of 12663631264 is 46213636621.

It is a happy number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1553962 + ... + 1562089.

It is an arithmetic number, because the mean of its divisors is an integer number (1046993472).

Almost surely, 2^12663631264 is an apocalyptic number.

It is an amenable number.

12663631264 is a deficient number, since it is larger than the sum of its proper divisors (12464212064).

12663631264 is a wasteful number, since it uses less digits than its factorization.

12663631264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3116188 (or 3116180 counting only the distinct ones).

The product of its digits is 186624, while the sum is 40.

The spelling of 12663631264 in words is "twelve billion, six hundred sixty-three million, six hundred thirty-one thousand, two hundred sixty-four".