166044319928 has 32 divisors (see below), whose sum is σ = 314474715360. Its totient is φ = 82185006720.

The previous prime is 166044319907. The next prime is 166044319999. The reversal of 166044319928 is 829913440661.

It is a self number, because there is not a number n which added to its sum of digits gives 166044319928.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2221826 + ... + 2295342.

It is an arithmetic number, because the mean of its divisors is an integer number (9827334855).

Almost surely, 2^166044319928 is an apocalyptic number.

It is an amenable number.

166044319928 is a deficient number, since it is larger than the sum of its proper divisors (148430395432).

166044319928 is a wasteful number, since it uses less digits than its factorization.

166044319928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76367 (or 76363 counting only the distinct ones).

The product of its (nonzero) digits is 2239488, while the sum is 53.

The spelling of 166044319928 in words is "one hundred sixty-six billion, forty-four million, three hundred nineteen thousand, nine hundred twenty-eight".