16323949768 has 24 divisors (see below), whose sum is σ = 35604534150. Its totient is φ = 6995978304.

The previous prime is 16323949757. The next prime is 16323949799. The reversal of 16323949768 is 86794932361.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 9623217604 + 6700732164 = 98098^2 + 81858^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 20820973 + ... + 20821756.

Almost surely, 2^16323949768 is an apocalyptic number.

It is an amenable number.

16323949768 is an abundant number, since it is smaller than the sum of its proper divisors (19280584382).

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

16323949768 is a wasteful number, since it uses less digits than its factorization.

16323949768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41642749 (or 41642738 counting only the distinct ones).

The product of its digits is 11757312, while the sum is 58.

The spelling of 16323949768 in words is "sixteen billion, three hundred twenty-three million, nine hundred forty-nine thousand, seven hundred sixty-eight".