166658382 has 36 divisors (see below), whose sum is σ = 396909240. Its totient is φ = 50501880.

The previous prime is 166658363. The next prime is 166658431. The reversal of 166658382 is 283856661.

166658382 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 36082 + ... + 40437.

Almost surely, 2^166658382 is an apocalyptic number.

166658382 is an abundant number, since it is smaller than the sum of its proper divisors (230250858).

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

166658382 is a wasteful number, since it uses less digits than its factorization.

166658382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76549 (or 76535 counting only the distinct ones).

The product of its digits is 414720, while the sum is 45.

The square root of 166658382 is about 12909.6236196103. The cubic root of 166658382 is about 550.3120895425.

The spelling of 166658382 in words is "one hundred sixty-six million, six hundred fifty-eight thousand, three hundred eighty-two".