166445164 has 12 divisors (see below), whose sum is σ = 308413224. Its totient is φ = 78327104.

The previous prime is 166445161. The next prime is 166445171. The reversal of 166445164 is 461544661.

166445164 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (166445161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1223794 + ... + 1223929.

It is an arithmetic number, because the mean of its divisors is an integer number (25701102).

Almost surely, 2^166445164 is an apocalyptic number.

It is an amenable number.

166445164 is a deficient number, since it is larger than the sum of its proper divisors (141968060).

166445164 is a wasteful number, since it uses less digits than its factorization.

166445164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2447744 (or 2447742 counting only the distinct ones).

The product of its digits is 69120, while the sum is 37.

The square root of 166445164 is about 12901.3628737432. The cubic root of 166445164 is about 550.0773048364.

The spelling of 166445164 in words is "one hundred sixty-six million, four hundred forty-five thousand, one hundred sixty-four".