168516316799 has 2 divisors, whose sum is σ = 168516316800. Its totient is φ = 168516316798.

The previous prime is 168516316741. The next prime is 168516316853. The reversal of 168516316799 is 997613615861.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 168516316799 - 2¹⁶ = 168516251263 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (168516316399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84258158399 + 84258158400.

It is an arithmetic number, because the mean of its divisors is an integer number (84258158400).

Almost surely, 2^168516316799 is an apocalyptic number.

168516316799 is a deficient number, since it is larger than the sum of its proper divisors (1).

168516316799 is an equidigital number, since it uses as much as digits as its factorization.

168516316799 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14696640, while the sum is 62.

The spelling of 168516316799 in words is "one hundred sixty-eight billion, five hundred sixteen million, three hundred sixteen thousand, seven hundred ninety-nine".