166939682 has 16 divisors (see below), whose sum is σ = 308196672. Its totient is φ = 66042000.

The previous prime is 166939657. The next prime is 166939693. The reversal of 166939682 is 286939661.

166939682 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×166939682² = 55737714852522248, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 166939682.

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, 458444 + ... + 458807.

It is an arithmetic number, because the mean of its divisors is an integer number (19262292).

Almost surely, 2^166939682 is an apocalyptic number.

166939682 is a deficient number, since it is larger than the sum of its proper divisors (141256990).

166939682 is a wasteful number, since it uses less digits than its factorization.

166939682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 917273.

The product of its digits is 839808, while the sum is 50.

The square root of 166939682 is about 12920.5139990637. The cubic root of 166939682 is about 550.6215364764.

The spelling of 166939682 in words is "one hundred sixty-six million, nine hundred thirty-nine thousand, six hundred eighty-two".