12556160641 has 16 divisors (see below), whose sum is σ = 12983523840. Its totient is φ = 12133704960.

The previous prime is 12556160629. The next prime is 12556160693. The reversal of 12556160641 is 14606165521.

It is a cyclic number.

It is not a de Polignac number, because 12556160641 - 2¹⁷ = 12556029569 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12556160641.

It is not an unprimeable number, because it can be changed into a prime (12556160341) 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, 4021561 + ... + 4024681.

It is an arithmetic number, because the mean of its divisors is an integer number (811470240).

Almost surely, 2^12556160641 is an apocalyptic number.

It is an amenable number.

12556160641 is a deficient number, since it is larger than the sum of its proper divisors (427363199).

12556160641 is a wasteful number, since it uses less digits than its factorization.

12556160641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3864.

The product of its (nonzero) digits is 43200, while the sum is 37.

The spelling of 12556160641 in words is "twelve billion, five hundred fifty-six million, one hundred sixty thousand, six hundred forty-one".