12648105656 has 16 divisors (see below), whose sum is σ = 24266715000. Its totient is φ = 6176981664.

The previous prime is 12648105653. The next prime is 12648105667. The reversal of 12648105656 is 65650184621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12648105653) 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, 18383531 + ... + 18384218.

Almost surely, 2^12648105656 is an apocalyptic number.

It is an amenable number.

12648105656 is a deficient number, since it is larger than the sum of its proper divisors (11618609344).

12648105656 is a wasteful number, since it uses less digits than its factorization.

12648105656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36767798 (or 36767794 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 44.

The spelling of 12648105656 in words is "twelve billion, six hundred forty-eight million, one hundred five thousand, six hundred fifty-six".