12648180856 has 64 divisors (see below), whose sum is σ = 24627667680. Its totient is φ = 6085662720.

The previous prime is 12648180841. The next prime is 12648180859. The reversal of 12648180856 is 65808184621.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12648180859) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7773115 + ... + 7774741.

Almost surely, 2^12648180856 is an apocalyptic number.

It is an amenable number.

12648180856 is a deficient number, since it is larger than the sum of its proper divisors (11979486824).

12648180856 is a wasteful number, since it uses less digits than its factorization.

12648180856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1984 (or 1980 counting only the distinct ones).

The product of its (nonzero) digits is 737280, while the sum is 49.

The spelling of 12648180856 in words is "twelve billion, six hundred forty-eight million, one hundred eighty thousand, eight hundred fifty-six".