163332666 has 32 divisors (see below), whose sum is σ = 414814080. Its totient is φ = 46666368.

The previous prime is 163332641. The next prime is 163332671. The reversal of 163332666 is 666233361.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 163332666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 215671 + ... + 216426.

It is an arithmetic number, because the mean of its divisors is an integer number (12962940).

Almost surely, 2^163332666 is an apocalyptic number.

163332666 is an abundant number, since it is smaller than the sum of its proper divisors (251481414).

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

163332666 is a wasteful number, since it uses less digits than its factorization.

163332666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432115 (or 432109 counting only the distinct ones).

The product of its digits is 69984, while the sum is 36.

The square root of 163332666 is about 12780.1669003186. The cubic root of 163332666 is about 546.6269214775.

The spelling of 163332666 in words is "one hundred sixty-three million, three hundred thirty-two thousand, six hundred sixty-six".