12113656556 has 6 divisors (see below), whose sum is σ = 21198898980. Its totient is φ = 6056828276.

The previous prime is 12113656553. The next prime is 12113656579. The reversal of 12113656556 is 65565631121.

It is a super-2 number, since 2×12113656556² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12113656553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1514207066 + ... + 1514207073.

It is an arithmetic number, because the mean of its divisors is an integer number (3533149830).

Almost surely, 2^12113656556 is an apocalyptic number.

It is an amenable number.

12113656556 is a deficient number, since it is larger than the sum of its proper divisors (9085242424).

12113656556 is a wasteful number, since it uses less digits than its factorization.

12113656556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3028414143 (or 3028414141 counting only the distinct ones).

The product of its digits is 162000, while the sum is 41.

The spelling of 12113656556 in words is "twelve billion, one hundred thirteen million, six hundred fifty-six thousand, five hundred fifty-six".