166666084 has 24 divisors (see below), whose sum is σ = 315287168. Its totient is φ = 76632480.

The previous prime is 166666069. The next prime is 166666111. The reversal of 166666084 is 480666661.

166666084 = T₂₉₀₄ + T₂₉₀₅ + ... + T₂₉₄₂.

It is a self number, because there is not a number n which added to its sum of digits gives 166666084.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8179 + ... + 20005.

Almost surely, 2^166666084 is an apocalyptic number.

It is an amenable number.

166666084 is a deficient number, since it is larger than the sum of its proper divisors (148621084).

166666084 is a wasteful number, since it uses less digits than its factorization.

166666084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12115 (or 12113 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 43.

The square root of 166666084 is about 12909.9219207554. The cubic root of 166666084 is about 550.3205668407.

The spelling of 166666084 in words is "one hundred sixty-six million, six hundred sixty-six thousand, eighty-four".