16820323068 has 24 divisors (see below), whose sum is σ = 39507341440. Its totient is φ = 5569642800.

The previous prime is 16820323057. The next prime is 16820323109. The reversal of 16820323068 is 86032302861.

It is a super-2 number, since 2×16820323068² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4639558 + ... + 4643181.

Almost surely, 2^16820323068 is an apocalyptic number.

It is an amenable number.

16820323068 is an abundant number, since it is smaller than the sum of its proper divisors (22687018372).

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

16820323068 is a wasteful number, since it uses less digits than its factorization.

16820323068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9282897 (or 9282895 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 39.

It can be divided in two parts, 168203 and 23068, that added together give a triangular number (191271 = T₆₁₈).

The spelling of 16820323068 in words is "sixteen billion, eight hundred twenty million, three hundred twenty-three thousand, sixty-eight".