166304388 has 12 divisors (see below), whose sum is σ = 388043600. Its totient is φ = 55434792.

The previous prime is 166304371. The next prime is 166304393. The reversal of 166304388 is 883403661.

166304388 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

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 3 ways as a sum of consecutive naturals, for example, 6929338 + ... + 6929361.

Almost surely, 2^166304388 is an apocalyptic number.

It is an amenable number.

166304388 is an abundant number, since it is smaller than the sum of its proper divisors (221739212).

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

166304388 is a wasteful number, since it uses less digits than its factorization.

166304388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13858706 (or 13858704 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 39.

The square root of 166304388 is about 12895.9058619393. The cubic root of 166304388 is about 549.9221796232.

The spelling of 166304388 in words is "one hundred sixty-six million, three hundred four thousand, three hundred eighty-eight".