166958044 has 24 divisors (see below), whose sum is σ = 319229568. Its totient is φ = 75773040.

The previous prime is 166958021. The next prime is 166958063. The reversal of 166958044 is 440859661.

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, 30139 + ... + 35245.

It is an arithmetic number, because the mean of its divisors is an integer number (13301232).

Almost surely, 2^166958044 is an apocalyptic number.

It is an amenable number.

166958044 is a deficient number, since it is larger than the sum of its proper divisors (152271524).

166958044 is a wasteful number, since it uses less digits than its factorization.

166958044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5865 (or 5863 counting only the distinct ones).

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

The square root of 166958044 is about 12921.2245549716. The cubic root of 166958044 is about 550.6417236919.

The spelling of 166958044 in words is "one hundred sixty-six million, nine hundred fifty-eight thousand, forty-four".