166144144 has 20 divisors (see below), whose sum is σ = 322122240. Its totient is φ = 83015840.

The previous prime is 166144133. The next prime is 166144229. The reversal of 166144144 is 441441661.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31317 + ... + 36235.

It is an arithmetic number, because the mean of its divisors is an integer number (16106112).

Almost surely, 2^166144144 is an apocalyptic number.

It is an amenable number.

166144144 is a deficient number, since it is larger than the sum of its proper divisors (155978096).

166144144 is a wasteful number, since it uses less digits than its factorization.

166144144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7038 (or 7032 counting only the distinct ones).

The product of its digits is 9216, while the sum is 31.

The square root of 166144144 is about 12889.6913849789. The cubic root of 166144144 is about 549.7454954730.

The spelling of 166144144 in words is "one hundred sixty-six million, one hundred forty-four thousand, one hundred forty-four".