166125116574 has 12 divisors (see below), whose sum is σ = 359937752616. Its totient is φ = 55375038852.

The previous prime is 166125116557. The next prime is 166125116593. The reversal of 166125116574 is 475611521661.

166125116574 is a `hidden beast` number, since 1 + 6 + 6 + 1 + 2 + 511 + 65 + 74 = 666.

166125116574 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4614586554 + ... + 4614586589.

It is an arithmetic number, because the mean of its divisors is an integer number (29994812718).

Almost surely, 2^166125116574 is an apocalyptic number.

166125116574 is an abundant number, since it is smaller than the sum of its proper divisors (193812636042).

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

166125116574 is a wasteful number, since it uses less digits than its factorization.

166125116574 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9229173151 (or 9229173148 counting only the distinct ones).

The product of its digits is 302400, while the sum is 45.

The spelling of 166125116574 in words is "one hundred sixty-six billion, one hundred twenty-five million, one hundred sixteen thousand, five hundred seventy-four".