12166575824052 has 72 divisors (see below), whose sum is σ = 33123415488800. Its totient is φ = 3743189651520.

The previous prime is 12166575824033. The next prime is 12166575824069. The reversal of 12166575824052 is 25042857566121.

12166575824052 is a `hidden beast` number, since 1 + 2 + 1 + 6 + 6 + 5 + 7 + 582 + 4 + 0 + 52 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 12166575824052.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3439227 + ... + 6013437.

Almost surely, 2^{12166575824052} is an apocalyptic number.

12166575824052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12166575824052 is an abundant number, since it is smaller than the sum of its proper divisors (20956839664748).

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

12166575824052 is a wasteful number, since it uses less digits than its factorization.

12166575824052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2584333 (or 2584328 counting only the distinct ones).

The product of its (nonzero) digits is 8064000, while the sum is 54.

The spelling of 12166575824052 in words is "twelve trillion, one hundred sixty-six billion, five hundred seventy-five million, eight hundred twenty-four thousand, fifty-two".