12556466166 has 8 divisors (see below), whose sum is σ = 25112932344. Its totient is φ = 4185488720.

The previous prime is 12556466161. The next prime is 12556466177. The reversal of 12556466166 is 66166465521.

12556466166 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

12556466166 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12556466161) 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, 1046372175 + ... + 1046372186.

It is an arithmetic number, because the mean of its divisors is an integer number (3139116543).

Almost surely, 2^12556466166 is an apocalyptic number.

12556466166 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

12556466166 is a wasteful number, since it uses less digits than its factorization.

12556466166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2092744366.

The product of its digits is 1555200, while the sum is 48.

The spelling of 12556466166 in words is "twelve billion, five hundred fifty-six million, four hundred sixty-six thousand, one hundred sixty-six".