16631667839 has 16 divisors (see below), whose sum is σ = 17983257600. Its totient is φ = 15341822496.

The previous prime is 16631667799. The next prime is 16631667859. The reversal of 16631667839 is 93876613661.

It is a cyclic number.

It is not a de Polignac number, because 16631667839 - 2⁸ = 16631667583 is a prime.

It is a super-2 number, since 2×16631667839² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (56) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16631667859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28304 + ... + 184565.

It is an arithmetic number, because the mean of its divisors is an integer number (1123953600).

Almost surely, 2^16631667839 is an apocalyptic number.

16631667839 is a deficient number, since it is larger than the sum of its proper divisors (1351589761).

16631667839 is a wasteful number, since it uses less digits than its factorization.

16631667839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213014.

The product of its digits is 5878656, while the sum is 56.

The spelling of 16631667839 in words is "sixteen billion, six hundred thirty-one million, six hundred sixty-seven thousand, eight hundred thirty-nine".