163323816 has 16 divisors (see below), whose sum is σ = 408309600. Its totient is φ = 54441264.

The previous prime is 163323799. The next prime is 163323821. The reversal of 163323816 is 618323361.

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

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, 3402556 + ... + 3402603.

It is an arithmetic number, because the mean of its divisors is an integer number (25519350).

Almost surely, 2^163323816 is an apocalyptic number.

It is an amenable number.

163323816 is an abundant number, since it is smaller than the sum of its proper divisors (244985784).

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

163323816 is a wasteful number, since it uses less digits than its factorization.

163323816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6805168 (or 6805164 counting only the distinct ones).

The product of its digits is 15552, while the sum is 33.

The square root of 163323816 is about 12779.8206560186. The cubic root of 163323816 is about 546.6170485073.

The spelling of 163323816 in words is "one hundred sixty-three million, three hundred twenty-three thousand, eight hundred sixteen".