4443665166 has 24 divisors (see below), whose sum is σ = 10134675720. Its totient is φ = 1403262576.

The previous prime is 4443665137. The next prime is 4443665189. The reversal of 4443665166 is 6615663444.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6496245 + ... + 6496928.

It is an arithmetic number, because the mean of its divisors is an integer number (422278155).

Almost surely, 2^4443665166 is an apocalyptic number.

4443665166 is an abundant number, since it is smaller than the sum of its proper divisors (5691010554).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4443665166 is a wasteful number, since it uses less digits than its factorization.

4443665166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12993200 (or 12993197 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 45.

The square root of 4443665166 is about 66660.8218221168. The cubic root of 4443665166 is about 1644.0452839747.

The spelling of 4443665166 in words is "four billion, four hundred forty-three million, six hundred sixty-five thousand, one hundred sixty-six".