166057660 has 24 divisors (see below), whose sum is σ = 349011936. Its totient is φ = 66367680.

The previous prime is 166057651. The next prime is 166057679. The reversal of 166057660 is 66750661.

It is a happy number.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28170 + ... + 33550.

It is an arithmetic number, because the mean of its divisors is an integer number (14542164).

Almost surely, 2^166057660 is an apocalyptic number.

166057660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

166057660 is an abundant number, since it is smaller than the sum of its proper divisors (182954276).

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

166057660 is a wasteful number, since it uses less digits than its factorization.

166057660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6933 (or 6931 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 37.

The square root of 166057660 is about 12886.3361744136. The cubic root of 166057660 is about 549.6500914859.

The spelling of 166057660 in words is "one hundred sixty-six million, fifty-seven thousand, six hundred sixty".