166945598504 has 32 divisors (see below), whose sum is σ = 323895580200. Its totient is φ = 80574842880.

The previous prime is 166945598503. The next prime is 166945598539. The reversal of 166945598504 is 405895549661.

It can be written as a sum of positive squares in 4 ways, for example, as 135867434404 + 31078164100 = 368602^2 + 176290^2 .

It is not an unprimeable number, because it can be changed into a prime (166945598503) 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, 893024 + ... + 1063664.

Almost surely, 2^166945598504 is an apocalyptic number.

It is an amenable number.

166945598504 is a deficient number, since it is larger than the sum of its proper divisors (156949981696).

166945598504 is a wasteful number, since it uses less digits than its factorization.

166945598504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174893 (or 174889 counting only the distinct ones).

The product of its (nonzero) digits is 46656000, while the sum is 62.

The spelling of 166945598504 in words is "one hundred sixty-six billion, nine hundred forty-five million, five hundred ninety-eight thousand, five hundred four".