166426372 has 24 divisors (see below), whose sum is σ = 333126080. Its totient is φ = 71267040.

The previous prime is 166426313. The next prime is 166426387. The reversal of 166426372 is 273624661.

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, 64279 + ... + 66817.

Almost surely, 2^166426372 is an apocalyptic number.

It is an amenable number.

166426372 is an abundant number, since it is smaller than the sum of its proper divisors (166699708).

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

166426372 is a wasteful number, since it uses less digits than its factorization.

166426372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4891 (or 4889 counting only the distinct ones).

The product of its digits is 72576, while the sum is 37.

The square root of 166426372 is about 12900.6345580363. The cubic root of 166426372 is about 550.0566024391.

The spelling of 166426372 in words is "one hundred sixty-six million, four hundred twenty-six thousand, three hundred seventy-two".