12646037556374 has 16 divisors (see below), whose sum is σ = 19246579900416. Its totient is φ = 6231129705000.

The previous prime is 12646037556371. The next prime is 12646037556391. The reversal of 12646037556374 is 47365573064621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12646037556371) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 154654502 + ... + 154736249.

It is an arithmetic number, because the mean of its divisors is an integer number (1202911243776).

Almost surely, 2^{12646037556374} is an apocalyptic number.

12646037556374 is a deficient number, since it is larger than the sum of its proper divisors (6600542344042).

12646037556374 is a wasteful number, since it uses less digits than its factorization.

12646037556374 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309391051.

The product of its (nonzero) digits is 76204800, while the sum is 59.

The spelling of 12646037556374 in words is "twelve trillion, six hundred forty-six billion, thirty-seven million, five hundred fifty-six thousand, three hundred seventy-four".