166880954508 has 48 divisors (see below), whose sum is σ = 411121549440. Its totient is φ = 52540012800.

The previous prime is 166880954419. The next prime is 166880954521. The reversal of 166880954508 is 805459088661.

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 15 ways as a sum of consecutive naturals, for example, 1030173 + ... + 1181108.

It is an arithmetic number, because the mean of its divisors is an integer number (8565032280).

Almost surely, 2^166880954508 is an apocalyptic number.

It is an amenable number.

166880954508 is an abundant number, since it is smaller than the sum of its proper divisors (244240594932).

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

166880954508 is a wasteful number, since it uses less digits than its factorization.

166880954508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2211638 (or 2211636 counting only the distinct ones).

The product of its (nonzero) digits is 16588800, while the sum is 60.

The spelling of 166880954508 in words is "one hundred sixty-six billion, eight hundred eighty million, nine hundred fifty-four thousand, five hundred eight".