166395432 has 64 divisors (see below), whose sum is σ = 496097280. Its totient is φ = 45473472.

The previous prime is 166395431. The next prime is 166395443. The reversal of 166395432 is 234593661.

It is not an unprimeable number, because it can be changed into a prime (166395431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17668 + ... + 25395.

It is an arithmetic number, because the mean of its divisors is an integer number (7751520).

Almost surely, 2^166395432 is an apocalyptic number.

166395432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

166395432 is an abundant number, since it is smaller than the sum of its proper divisors (329701848).

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

166395432 is a wasteful number, since it uses less digits than its factorization.

166395432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43102 (or 43098 counting only the distinct ones).

The product of its digits is 116640, while the sum is 39.

The square root of 166395432 is about 12899.4353364789. The cubic root of 166395432 is about 550.0225136790.

The spelling of 166395432 in words is "one hundred sixty-six million, three hundred ninety-five thousand, four hundred thirty-two".