16208196317 has 2 divisors, whose sum is σ = 16208196318. Its totient is φ = 16208196316.

The previous prime is 16208196299. The next prime is 16208196337. The reversal of 16208196317 is 71369180261.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9937298596 + 6270897721 = 99686^2 + 79189^2 .

It is a cyclic number.

It is not a de Polignac number, because 16208196317 - 2²⁰ = 16207147741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16208196337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8104098158 + 8104098159.

It is an arithmetic number, because the mean of its divisors is an integer number (8104098159).

Almost surely, 2^16208196317 is an apocalyptic number.

It is an amenable number.

16208196317 is a deficient number, since it is larger than the sum of its proper divisors (1).

16208196317 is an equidigital number, since it uses as much as digits as its factorization.

16208196317 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108864, while the sum is 44.

The spelling of 16208196317 in words is "sixteen billion, two hundred eight million, one hundred ninety-six thousand, three hundred seventeen".