166116724 has 24 divisors (see below), whose sum is σ = 317737728. Its totient is φ = 75649920.

The previous prime is 166116719. The next prime is 166116733. The reversal of 166116724 is 427611661.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a self number, because there is not a number n which added to its sum of digits gives 166116724.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37294 + ... + 41509.

It is an arithmetic number, because the mean of its divisors is an integer number (13239072).

Almost surely, 2^166116724 is an apocalyptic number.

It is an amenable number.

166116724 is a deficient number, since it is larger than the sum of its proper divisors (151621004).

166116724 is a wasteful number, since it uses less digits than its factorization.

166116724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78855 (or 78853 counting only the distinct ones).

The product of its digits is 12096, while the sum is 34.

The square root of 166116724 is about 12888.6277004187. The cubic root of 166116724 is about 549.7152509507.

The spelling of 166116724 in words is "one hundred sixty-six million, one hundred sixteen thousand, seven hundred twenty-four".