163815923008 has 56 divisors (see below), whose sum is σ = 326983587840. Its totient is φ = 81427530240.

The previous prime is 163815922979. The next prime is 163815923087. The reversal of 163815923008 is 800329518361.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9367713 + ... + 9385183.

It is an arithmetic number, because the mean of its divisors is an integer number (5838992640).

Almost surely, 2^163815923008 is an apocalyptic number.

It is an amenable number.

163815923008 is a deficient number, since it is larger than the sum of its proper divisors (163167664832).

163815923008 is a wasteful number, since it uses less digits than its factorization.

163815923008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18335 (or 18325 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 46.

The spelling of 163815923008 in words is "one hundred sixty-three billion, eight hundred fifteen million, nine hundred twenty-three thousand, eight".