166886956324 has 81 divisors (see below), whose sum is σ = 332260114683. Its totient is φ = 73288129200.

The previous prime is 166886956309. The next prime is 166886956331. The reversal of 166886956324 is 423659688661.

The square root of 166886956324 is 408518.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 278608977 + ... + 278609575.

Almost surely, 2^166886956324 is an apocalyptic number.

166886956324 is the 408518-th square number.

It is an amenable number.

166886956324 is a deficient number, since it is larger than the sum of its proper divisors (165373158359).

166886956324 is an equidigital number, since it uses as much as digits as its factorization.

166886956324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1286 (or 643 counting only the distinct ones).

The product of its digits is 89579520, while the sum is 64.

Multiplying 166886956324 by its sum of digits (64), we get a square (10680765204736 = 3268144²).

The spelling of 166886956324 in words is "one hundred sixty-six billion, eight hundred eighty-six million, nine hundred fifty-six thousand, three hundred twenty-four".