163313646 has 8 divisors (see below), whose sum is σ = 326627304. Its totient is φ = 54437880.

The previous prime is 163313627. The next prime is 163313659. The reversal of 163313646 is 646313361.

163313646 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

163313646 is an admirable number.

It is a Curzon number.

It is a congruent number.

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, 13609465 + ... + 13609476.

It is an arithmetic number, because the mean of its divisors is an integer number (40828413).

Almost surely, 2^163313646 is an apocalyptic number.

163313646 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

163313646 is a wasteful number, since it uses less digits than its factorization.

163313646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27218946.

The product of its digits is 23328, while the sum is 33.

The square root of 163313646 is about 12779.4227569167. The cubic root of 163313646 is about 546.6057025181.

The spelling of 163313646 in words is "one hundred sixty-three million, three hundred thirteen thousand, six hundred forty-six".