166664976 has 40 divisors (see below), whose sum is σ = 431769984. Its totient is φ = 55397760.

The previous prime is 166664963. The next prime is 166665011. The reversal of 166664976 is 679466661.

166664976 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 12886 + ... + 22346.

Almost surely, 2^166664976 is an apocalyptic number.

166664976 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

166664976 is an abundant number, since it is smaller than the sum of its proper divisors (265105008).

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

166664976 is a wasteful number, since it uses less digits than its factorization.

166664976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9839 (or 9833 counting only the distinct ones).

The product of its digits is 1959552, while the sum is 51.

The square root of 166664976 is about 12909.8790079536. The cubic root of 166664976 is about 550.3193473234.

The spelling of 166664976 in words is "one hundred sixty-six million, six hundred sixty-four thousand, nine hundred seventy-six".