166641882 has 16 divisors (see below), whose sum is σ = 363582432. Its totient is φ = 50497520.

The previous prime is 166641869. The next prime is 166641883. The reversal of 166641882 is 288146661.

166641882 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (166641883) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1262373 + ... + 1262504.

It is an arithmetic number, because the mean of its divisors is an integer number (22723902).

Almost surely, 2^166641882 is an apocalyptic number.

166641882 is an abundant number, since it is smaller than the sum of its proper divisors (196940550).

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

166641882 is a wasteful number, since it uses less digits than its factorization.

166641882 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2524893.

The product of its digits is 110592, while the sum is 42.

The square root of 166641882 is about 12908.9845456566. The cubic root of 166641882 is about 550.2939277414.

The spelling of 166641882 in words is "one hundred sixty-six million, six hundred forty-one thousand, eight hundred eighty-two".