166552315556 has 24 divisors (see below), whose sum is σ = 317999871840. Its totient is φ = 75696940800.

The previous prime is 166552315519. The next prime is 166552315609. The reversal of 166552315556 is 655513255661.

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, 180911 + ... + 604841.

It is an arithmetic number, because the mean of its divisors is an integer number (13249994660).

Almost surely, 2^166552315556 is an apocalyptic number.

It is an amenable number.

166552315556 is a deficient number, since it is larger than the sum of its proper divisors (151447556284).

166552315556 is a wasteful number, since it uses less digits than its factorization.

166552315556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432875 (or 432873 counting only the distinct ones).

The product of its digits is 4050000, while the sum is 50.

The spelling of 166552315556 in words is "one hundred sixty-six billion, five hundred fifty-two million, three hundred fifteen thousand, five hundred fifty-six".