163320216 has 32 divisors (see below), whose sum is σ = 408648240. Its totient is φ = 54393728.

The previous prime is 163320211. The next prime is 163320221. The reversal of 163320216 is 612023361.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (163320211) and next prime (163320221).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163320211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37210 + ... + 41366.

Almost surely, 2^163320216 is an apocalyptic number.

It is an amenable number.

163320216 is an abundant number, since it is smaller than the sum of its proper divisors (245328024).

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

163320216 is a wasteful number, since it uses less digits than its factorization.

163320216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5803 (or 5799 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 163320216 is about 12779.6798081955. The cubic root of 163320216 is about 546.6130322818.

Adding to 163320216 its reverse (612023361), we get a palindrome (775343577).

The spelling of 163320216 in words is "one hundred sixty-three million, three hundred twenty thousand, two hundred sixteen".