166373572 has 24 divisors (see below), whose sum is σ = 303898392. Its totient is φ = 79622400.

The previous prime is 166373507. The next prime is 166373617. The reversal of 166373572 is 275373661.

It can be written as a sum of positive squares in 4 ways, for example, as 10023556 + 156350016 = 3166^2 + 12504^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 879 + ... + 18262.

It is an arithmetic number, because the mean of its divisors is an integer number (12662433).

Almost surely, 2^166373572 is an apocalyptic number.

It is an amenable number.

166373572 is a deficient number, since it is larger than the sum of its proper divisors (137524820).

166373572 is a wasteful number, since it uses less digits than its factorization.

166373572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19239 (or 19237 counting only the distinct ones).

The product of its digits is 158760, while the sum is 40.

The square root of 166373572 is about 12898.5879847369. The cubic root of 166373572 is about 549.9984264418.

The spelling of 166373572 in words is "one hundred sixty-six million, three hundred seventy-three thousand, five hundred seventy-two".