166594533828 has 24 divisors (see below), whose sum is σ = 388744259232. Its totient is φ = 55528128384.

The previous prime is 166594533827. The next prime is 166594533857. The reversal of 166594533828 is 828335495661.

It is not an unprimeable number, because it can be changed into a prime (166594533827) 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, 213525 + ... + 615452.

It is an arithmetic number, because the mean of its divisors is an integer number (16197677468).

Almost surely, 2^166594533828 is an apocalyptic number.

It is an amenable number.

166594533828 is an abundant number, since it is smaller than the sum of its proper divisors (222149725404).

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

166594533828 is a wasteful number, since it uses less digits than its factorization.

166594533828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 845731 (or 845729 counting only the distinct ones).

The product of its digits is 37324800, while the sum is 60.

The spelling of 166594533828 in words is "one hundred sixty-six billion, five hundred ninety-four million, five hundred thirty-three thousand, eight hundred twenty-eight".