166872004724 has 12 divisors (see below), whose sum is σ = 292028872548. Its totient is φ = 83435184000.

The previous prime is 166872004699. The next prime is 166872004757. The reversal of 166872004724 is 427400278661.

166872004724 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 43201622500 + 123670382224 = 207850^2 + 351668^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 662924 + ... + 879324.

It is an arithmetic number, because the mean of its divisors is an integer number (24335739379).

Almost surely, 2^166872004724 is an apocalyptic number.

It is an amenable number.

166872004724 is a deficient number, since it is larger than the sum of its proper divisors (125156867824).

166872004724 is a wasteful number, since it uses less digits than its factorization.

166872004724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 409186 (or 409184 counting only the distinct ones).

The product of its (nonzero) digits is 903168, while the sum is 47.

The spelling of 166872004724 in words is "one hundred sixty-six billion, eight hundred seventy-two million, four thousand, seven hundred twenty-four".