12656814533027 has 16 divisors (see below), whose sum is σ = 14552015869440. Its totient is φ = 10783388626368.

The previous prime is 12656814533017. The next prime is 12656814533047. The reversal of 12656814533027 is 72033541865621.

It is a cyclic number.

It is not a de Polignac number, because 12656814533027 - 2¹⁸ = 12656814270883 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12656814533027.

It is not an unprimeable number, because it can be changed into a prime (12656814533017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40123124 + ... + 40437342.

It is an arithmetic number, because the mean of its divisors is an integer number (909500991840).

Almost surely, 2^{12656814533027} is an apocalyptic number.

12656814533027 is a deficient number, since it is larger than the sum of its proper divisors (1895201336413).

12656814533027 is a wasteful number, since it uses less digits than its factorization.

12656814533027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348850.

The product of its (nonzero) digits is 7257600, while the sum is 53.

The spelling of 12656814533027 in words is "twelve trillion, six hundred fifty-six billion, eight hundred fourteen million, five hundred thirty-three thousand, twenty-seven".