16722323968 has 80 divisors (see below), whose sum is σ = 38477697984. Its totient is φ = 7111802880.

The previous prime is 16722323953. The next prime is 16722323977. The reversal of 16722323968 is 86932322761.

It is a super-2 number, since 2×16722323968² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 451696 + ... + 487312.

Almost surely, 2^16722323968 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 16722323968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19238848992).

16722323968 is an abundant number, since it is smaller than the sum of its proper divisors (21755374016).

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

16722323968 is an equidigital number, since it uses as much as digits as its factorization.

16722323968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35773 (or 35757 counting only the distinct ones).

The product of its digits is 1306368, while the sum is 49.

It can be divided in two parts, 167223 and 23968, that added together give a palindrome (191191).

The spelling of 16722323968 in words is "sixteen billion, seven hundred twenty-two million, three hundred twenty-three thousand, nine hundred sixty-eight".