166566051112 has 32 divisors (see below), whose sum is σ = 314594992800. Its totient is φ = 82675520704.

The previous prime is 166566051107. The next prime is 166566051121. The reversal of 166566051112 is 211150665661.

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, 820743 + ... + 1003369.

It is an arithmetic number, because the mean of its divisors is an integer number (9831093525).

Almost surely, 2^166566051112 is an apocalyptic number.

It is an amenable number.

166566051112 is a deficient number, since it is larger than the sum of its proper divisors (148028941688).

166566051112 is a wasteful number, since it uses less digits than its factorization.

166566051112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183465 (or 183461 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 40.

The spelling of 166566051112 in words is "one hundred sixty-six billion, five hundred sixty-six million, fifty-one thousand, one hundred twelve".