166538068 has 24 divisors (see below), whose sum is σ = 302803200. Its totient is φ = 80047968.

The previous prime is 166538041. The next prime is 166538077. The reversal of 166538068 is 860835661.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24721 + ... + 30727.

It is an arithmetic number, because the mean of its divisors is an integer number (12616800).

Almost surely, 2^166538068 is an apocalyptic number.

It is an amenable number.

166538068 is a deficient number, since it is larger than the sum of its proper divisors (136265132).

166538068 is a wasteful number, since it uses less digits than its factorization.

166538068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6279 (or 6277 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 43.

The square root of 166538068 is about 12904.9629212950. The cubic root of 166538068 is about 550.1796305823.

The spelling of 166538068 in words is "one hundred sixty-six million, five hundred thirty-eight thousand, sixty-eight".