166516044 has 24 divisors (see below), whose sum is σ = 405431040. Its totient is φ = 53091984.

The previous prime is 166516043. The next prime is 166516061. The reversal of 166516044 is 440615661.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 166515996 and 166516014.

It is not an unprimeable number, because it can be changed into a prime (166516043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 301384 + ... + 301935.

It is an arithmetic number, because the mean of its divisors is an integer number (16892960).

Almost surely, 2^166516044 is an apocalyptic number.

It is an amenable number.

166516044 is an abundant number, since it is smaller than the sum of its proper divisors (238914996).

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

166516044 is a wasteful number, since it uses less digits than its factorization.

166516044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 603349 (or 603347 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 166516044 is about 12904.1095779600. The cubic root of 166516044 is about 550.1553764873.

The spelling of 166516044 in words is "one hundred sixty-six million, five hundred sixteen thousand, forty-four".