16811676169 has 2 divisors, whose sum is σ = 16811676170. Its totient is φ = 16811676168.

The previous prime is 16811676163. The next prime is 16811676173. The reversal of 16811676169 is 96167611861.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16683080569 + 128595600 = 129163^2 + 11340^2 .

It is an emirp because it is prime and its reverse (96167611861) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16811676169 is a prime.

It is a super-2 number, since 2×16811676169² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (16811676163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8405838084 + 8405838085.

It is an arithmetic number, because the mean of its divisors is an integer number (8405838085).

Almost surely, 2^16811676169 is an apocalyptic number.

It is an amenable number.

16811676169 is a deficient number, since it is larger than the sum of its proper divisors (1).

16811676169 is an equidigital number, since it uses as much as digits as its factorization.

16811676169 is an evil number, because the sum of its binary digits is even.

The product of its digits is 653184, while the sum is 52.

The spelling of 16811676169 in words is "sixteen billion, eight hundred eleven million, six hundred seventy-six thousand, one hundred sixty-nine".