166033444 has 12 divisors (see below), whose sum is σ = 291183984. Its totient is φ = 82838024.

The previous prime is 166033423. The next prime is 166033447. The reversal of 166033444 is 444330661.

It is a happy number.

It is a super-2 number, since 2×166033444² = 55134209053002272, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (166033447) 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, 42574 + ... + 46309.

It is an arithmetic number, because the mean of its divisors is an integer number (24265332).

Almost surely, 2^166033444 is an apocalyptic number.

It is an amenable number.

166033444 is a deficient number, since it is larger than the sum of its proper divisors (125150540).

166033444 is a wasteful number, since it uses less digits than its factorization.

166033444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89354 (or 89352 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 31.

The square root of 166033444 is about 12885.3965402699. The cubic root of 166033444 is about 549.6233719042.

The spelling of 166033444 in words is "one hundred sixty-six million, thirty-three thousand, four hundred forty-four".