12183508518156 has 24 divisors (see below), whose sum is σ = 31586873936240. Its totient is φ = 4061169506016.

The previous prime is 12183508518131. The next prime is 12183508518161. The reversal of 12183508518156 is 65181580538121.

It is a happy number.

12183508518156 is a `hidden beast` number, since 1 + 2 + 1 + 8 + 3 + 508 + 5 + 1 + 81 + 56 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56405131921 + ... + 56405132136.

Almost surely, 2^{12183508518156} is an apocalyptic number.

It is an amenable number.

12183508518156 is an abundant number, since it is smaller than the sum of its proper divisors (19403365418084).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12183508518156 is a wasteful number, since it uses less digits than its factorization.

12183508518156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112810264070 (or 112810264062 counting only the distinct ones).

The product of its (nonzero) digits is 2304000, while the sum is 54.

The spelling of 12183508518156 in words is "twelve trillion, one hundred eighty-three billion, five hundred eight million, five hundred eighteen thousand, one hundred fifty-six".