163320332 has 36 divisors (see below), whose sum is σ = 346938480. Its totient is φ = 66949344.

The previous prime is 163320329. The next prime is 163320337. The reversal of 163320332 is 233023361.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a junction number, because it is equal to n+sod(n) for n = 163320298 and 163320307.

It is not an unprimeable number, because it can be changed into a prime (163320337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13607 + ... + 22622.

It is an arithmetic number, because the mean of its divisors is an integer number (9637180).

Almost surely, 2^163320332 is an apocalyptic number.

It is an amenable number.

163320332 is an abundant number, since it is smaller than the sum of its proper divisors (183618148).

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

163320332 is a wasteful number, since it uses less digits than its factorization.

163320332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36270 (or 36261 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 23.

The square root of 163320332 is about 12779.6843466496. The cubic root of 163320332 is about 546.6131616944.

Adding to 163320332 its reverse (233023361), we get a palindrome (396343693).

The spelling of 163320332 in words is "one hundred sixty-three million, three hundred twenty thousand, three hundred thirty-two".