16683686839 has 12 divisors (see below), whose sum is σ = 17616708480. Its totient is φ = 15797773440.

The previous prime is 16683686837. The next prime is 16683686861. The reversal of 16683686839 is 93868638661.

It is not a de Polignac number, because 16683686839 - 2¹ = 16683686837 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16683686837) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 797959 + ... + 818599.

It is an arithmetic number, because the mean of its divisors is an integer number (1468059040).

Almost surely, 2^16683686839 is an apocalyptic number.

16683686839 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

16683686839 is a deficient number, since it is larger than the sum of its proper divisors (933021641).

16683686839 is a wasteful number, since it uses less digits than its factorization.

16683686839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22918 (or 22899 counting only the distinct ones).

The product of its digits is 53747712, while the sum is 64.

The spelling of 16683686839 in words is "sixteen billion, six hundred eighty-three million, six hundred eighty-six thousand, eight hundred thirty-nine".