166146864 has 40 divisors (see below), whose sum is σ = 462230832. Its totient is φ = 51121920.

The previous prime is 166146857. The next prime is 166146881. The reversal of 166146864 is 468641661.

166146864 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a nude number because it is divisible by every one of its digits.

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, 132507 + ... + 133754.

Almost surely, 2^166146864 is an apocalyptic number.

It is an amenable number.

166146864 is an abundant number, since it is smaller than the sum of its proper divisors (296083968).

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

166146864 is a wasteful number, since it uses less digits than its factorization.

166146864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266285 (or 266279 counting only the distinct ones).

The product of its digits is 165888, while the sum is 42.

The square root of 166146864 is about 12889.7968952191. The cubic root of 166146864 is about 549.7484954776.

The spelling of 166146864 in words is "one hundred sixty-six million, one hundred forty-six thousand, eight hundred sixty-four".