16156253317 has 2 divisors, whose sum is σ = 16156253318. Its totient is φ = 16156253316.

The previous prime is 16156253279. The next prime is 16156253339. The reversal of 16156253317 is 71335265161.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13882966276 + 2273287041 = 117826^2 + 47679^2 .

It is a cyclic number.

It is not a de Polignac number, because 16156253317 - 2⁷ = 16156253189 is a prime.

It is a super-2 number, since 2×16156253317² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 16156253317.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16156250317) 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, 8078126658 + 8078126659.

It is an arithmetic number, because the mean of its divisors is an integer number (8078126659).

Almost surely, 2^16156253317 is an apocalyptic number.

It is an amenable number.

16156253317 is a deficient number, since it is larger than the sum of its proper divisors (1).

16156253317 is an equidigital number, since it uses as much as digits as its factorization.

16156253317 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 113400, while the sum is 40.

The spelling of 16156253317 in words is "sixteen billion, one hundred fifty-six million, two hundred fifty-three thousand, three hundred seventeen".