12656423600351 has 16 divisors (see below), whose sum is σ = 13428398844000. Its totient is φ = 11887520007168.

The previous prime is 12656423600281. The next prime is 12656423600371. The reversal of 12656423600351 is 15300632465621.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12656423600351 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12656423600371) 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, 21893675 + ... + 22464323.

It is an arithmetic number, because the mean of its divisors is an integer number (839274927750).

Almost surely, 2^{12656423600351} is an apocalyptic number.

12656423600351 is a deficient number, since it is larger than the sum of its proper divisors (771975243649).

12656423600351 is a wasteful number, since it uses less digits than its factorization.

12656423600351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 573338.

The product of its (nonzero) digits is 777600, while the sum is 44.

The spelling of 12656423600351 in words is "twelve trillion, six hundred fifty-six billion, four hundred twenty-three million, six hundred thousand, three hundred fifty-one".