16715989513 has 2 divisors, whose sum is σ = 16715989514. Its totient is φ = 16715989512.

The previous prime is 16715989447. The next prime is 16715989531. The reversal of 16715989513 is 31598951761.

Together with next prime (16715989531) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9193549689 + 7522439824 = 95883^2 + 86732^2 .

It is a cyclic number.

It is not a de Polignac number, because 16715989513 - 2¹⁷ = 16715858441 is a prime.

It is not a weakly prime, because it can be changed into another prime (16715989553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8357994756 + 8357994757.

It is an arithmetic number, because the mean of its divisors is an integer number (8357994757).

Almost surely, 2^16715989513 is an apocalyptic number.

It is an amenable number.

16715989513 is a deficient number, since it is larger than the sum of its proper divisors (1).

16715989513 is an equidigital number, since it uses as much as digits as its factorization.

16715989513 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2041200, while the sum is 55.

The spelling of 16715989513 in words is "sixteen billion, seven hundred fifteen million, nine hundred eighty-nine thousand, five hundred thirteen".