12965275656 has 48 divisors (see below), whose sum is σ = 35120814300. Its totient is φ = 4320955392.

The previous prime is 12965275649. The next prime is 12965275711. The reversal of 12965275656 is 65657256921.

12965275656 is a `hidden beast` number, since 1 + 29 + 6 + 52 + 7 + 565 + 6 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 12893602500 + 71673156 = 113550^2 + 8466^2 .

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 471700 + ... + 498428.

Almost surely, 2^12965275656 is an apocalyptic number.

It is an amenable number.

12965275656 is an abundant number, since it is smaller than the sum of its proper divisors (22155538644).

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

12965275656 is a wasteful number, since it uses less digits than its factorization.

12965275656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33478 (or 33471 counting only the distinct ones).

The product of its digits is 6804000, while the sum is 54.

The spelling of 12965275656 in words is "twelve billion, nine hundred sixty-five million, two hundred seventy-five thousand, six hundred fifty-six".