166412444 has 24 divisors (see below), whose sum is σ = 320132736. Its totient is φ = 75062000.

The previous prime is 166412423. The next prime is 166412447. The reversal of 166412444 is 444214661.

It is a self number, because there is not a number n which added to its sum of digits gives 166412444.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166412447) 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 7 ways as a sum of consecutive naturals, for example, 8672 + ... + 20199.

It is an arithmetic number, because the mean of its divisors is an integer number (13338864).

Almost surely, 2^166412444 is an apocalyptic number.

It is an amenable number.

166412444 is a deficient number, since it is larger than the sum of its proper divisors (153720292).

166412444 is a wasteful number, since it uses less digits than its factorization.

166412444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29017 (or 29015 counting only the distinct ones).

The product of its digits is 18432, while the sum is 32.

The square root of 166412444 is about 12900.0947283344. The cubic root of 166412444 is about 550.0412575111.

The spelling of 166412444 in words is "one hundred sixty-six million, four hundred twelve thousand, four hundred forty-four".