12556160663 has 4 divisors (see below), whose sum is σ = 12557415048. Its totient is φ = 12554906280.

The previous prime is 12556160629. The next prime is 12556160693. The reversal of 12556160663 is 36606165521.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12556160663 - 2²² = 12551966359 is a prime.

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 12556160663.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12556160693) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 612056 + ... + 632237.

It is an arithmetic number, because the mean of its divisors is an integer number (3139353762).

Almost surely, 2^12556160663 is an apocalyptic number.

12556160663 is a deficient number, since it is larger than the sum of its proper divisors (1254385).

12556160663 is a wasteful number, since it uses less digits than its factorization.

12556160663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1254384.

The product of its (nonzero) digits is 194400, while the sum is 41.

The spelling of 12556160663 in words is "twelve billion, five hundred fifty-six million, one hundred sixty thousand, six hundred sixty-three".