16923623808 has 256 divisors, whose sum is σ = 55764656640. Its totient is φ = 4428103680.

The previous prime is 16923623789. The next prime is 16923623809. The reversal of 16923623808 is 80832632961.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16923623809) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 4575816 + ... + 4579512.

It is an arithmetic number, because the mean of its divisors is an integer number (217830690).

Almost surely, 2^16923623808 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16923623808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27882328320).

16923623808 is an abundant number, since it is smaller than the sum of its proper divisors (38841032832).

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

16923623808 is a wasteful number, since it uses less digits than its factorization.

16923623808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3865 (or 3853 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 48.

The spelling of 16923623808 in words is "sixteen billion, nine hundred twenty-three million, six hundred twenty-three thousand, eight hundred eight".