166043992 has 16 divisors (see below), whose sum is σ = 324869040. Its totient is φ = 79412256.

The previous prime is 166043989. The next prime is 166043993. The reversal of 166043992 is 299340661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166043993) by changing a digit.

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, 451023 + ... + 451390.

It is an arithmetic number, because the mean of its divisors is an integer number (20304315).

Almost surely, 2^166043992 is an apocalyptic number.

It is an amenable number.

166043992 is a deficient number, since it is larger than the sum of its proper divisors (158825048).

166043992 is a wasteful number, since it uses less digits than its factorization.

166043992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 902442 (or 902438 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 40.

The square root of 166043992 is about 12885.8058343279. The cubic root of 166043992 is about 549.6350107331.

The spelling of 166043992 in words is "one hundred sixty-six million, forty-three thousand, nine hundred ninety-two".