16388133839 has 24 divisors (see below), whose sum is σ = 20844489600. Its totient is φ = 12740701680.

The previous prime is 16388133833. The next prime is 16388133863. The reversal of 16388133839 is 93833188361.

It is not a de Polignac number, because 16388133839 - 2⁴ = 16388133823 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16388133833) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 201992 + ... + 271250.

It is an arithmetic number, because the mean of its divisors is an integer number (868520400).

Almost surely, 2^16388133839 is an apocalyptic number.

16388133839 is a deficient number, since it is larger than the sum of its proper divisors (4456355761).

16388133839 is a wasteful number, since it uses less digits than its factorization.

16388133839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69723 (or 69716 counting only the distinct ones).

The product of its digits is 2239488, while the sum is 53.

The spelling of 16388133839 in words is "sixteen billion, three hundred eighty-eight million, one hundred thirty-three thousand, eight hundred thirty-nine".