166516056 has 48 divisors (see below), whose sum is σ = 515408400. Its totient is φ = 47575872.

The previous prime is 166516043. The next prime is 166516061. The reversal of 166516056 is 650615661.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 166516056.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 164691 + ... + 165698.

It is an arithmetic number, because the mean of its divisors is an integer number (10737675).

Almost surely, 2^166516056 is an apocalyptic number.

It is an amenable number.

166516056 is an abundant number, since it is smaller than the sum of its proper divisors (348892344).

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

166516056 is a wasteful number, since it uses less digits than its factorization.

166516056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330408 (or 330401 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The square root of 166516056 is about 12904.1100429282. The cubic root of 166516056 is about 550.1553897029.

The spelling of 166516056 in words is "one hundred sixty-six million, five hundred sixteen thousand, fifty-six".