16086985813 has 2 divisors, whose sum is σ = 16086985814. Its totient is φ = 16086985812.

The previous prime is 16086985801. The next prime is 16086985847. The reversal of 16086985813 is 31858968061.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8831864484 + 7255121329 = 93978^2 + 85177^2 .

It is an emirp because it is prime and its reverse (31858968061) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16086985813 is a prime.

It is a super-2 number, since 2×16086985813² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16086985853) 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, 8043492906 + 8043492907.

It is an arithmetic number, because the mean of its divisors is an integer number (8043492907).

Almost surely, 2^16086985813 is an apocalyptic number.

It is an amenable number.

16086985813 is a deficient number, since it is larger than the sum of its proper divisors (1).

16086985813 is an equidigital number, since it uses as much as digits as its factorization.

16086985813 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2488320, while the sum is 55.

The spelling of 16086985813 in words is "sixteen billion, eighty-six million, nine hundred eighty-five thousand, eight hundred thirteen".