12117066156 has 96 divisors (see below), whose sum is σ = 35611788800. Its totient is φ = 3532092480.

The previous prime is 12117066133. The next prime is 12117066187. The reversal of 12117066156 is 65166071121.

It is a happy number.

12117066156 is a `hidden beast` number, since 1 + 21 + 17 + 0 + 6 + 615 + 6 = 666.

12117066156 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 12117066156.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 200440 + ... + 253791.

Almost surely, 2^12117066156 is an apocalyptic number.

It is an amenable number.

12117066156 is an abundant number, since it is smaller than the sum of its proper divisors (23494722644).

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

12117066156 is a wasteful number, since it uses less digits than its factorization.

12117066156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 454276 (or 454268 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 36.

The spelling of 12117066156 in words is "twelve billion, one hundred seventeen million, sixty-six thousand, one hundred fifty-six".