16321968599 has 2 divisors, whose sum is σ = 16321968600. Its totient is φ = 16321968598.

The previous prime is 16321968581. The next prime is 16321968623. The reversal of 16321968599 is 99586912361.

It is a weak prime.

It is an emirp because it is prime and its reverse (99586912361) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16321968599 - 2³² = 12027001303 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16321968539) 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 as a sum of consecutive naturals, namely, 8160984299 + 8160984300.

It is an arithmetic number, because the mean of its divisors is an integer number (8160984300).

Almost surely, 2^16321968599 is an apocalyptic number.

16321968599 is a deficient number, since it is larger than the sum of its proper divisors (1).

16321968599 is an equidigital number, since it uses as much as digits as its factorization.

16321968599 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6298560, while the sum is 59.

The spelling of 16321968599 in words is "sixteen billion, three hundred twenty-one million, nine hundred sixty-eight thousand, five hundred ninety-nine".