16985648359 has 2 divisors, whose sum is σ = 16985648360. Its totient is φ = 16985648358.

The previous prime is 16985648231. The next prime is 16985648363. The reversal of 16985648359 is 95384658961.

It is a strong prime.

It is an emirp because it is prime and its reverse (95384658961) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16985648359 - 2⁷ = 16985648231 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16985648359.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16985648399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8492824179 + 8492824180.

It is an arithmetic number, because the mean of its divisors is an integer number (8492824180).

Almost surely, 2^16985648359 is an apocalyptic number.

16985648359 is a deficient number, since it is larger than the sum of its proper divisors (1).

16985648359 is an equidigital number, since it uses as much as digits as its factorization.

16985648359 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 55987200, while the sum is 64.

The spelling of 16985648359 in words is "sixteen billion, nine hundred eighty-five million, six hundred forty-eight thousand, three hundred fifty-nine".