163329216 has 28 divisors (see below), whose sum is σ = 432142392. Its totient is φ = 54443008.

The previous prime is 163329203. The next prime is 163329223. The reversal of 163329216 is 612923361.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 425145 + ... + 425528.

Almost surely, 2^163329216 is an apocalyptic number.

163329216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

163329216 is an abundant number, since it is smaller than the sum of its proper divisors (268813176).

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

163329216 is an equidigital number, since it uses as much as digits as its factorization.

163329216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 850688 (or 850678 counting only the distinct ones).

The product of its digits is 11664, while the sum is 33.

The square root of 163329216 is about 12780.0319248428. The cubic root of 163329216 is about 546.6230727349.

The spelling of 163329216 in words is "one hundred sixty-three million, three hundred twenty-nine thousand, two hundred sixteen".