16685776411 has 2 divisors, whose sum is σ = 16685776412. Its totient is φ = 16685776410.

The previous prime is 16685776339. The next prime is 16685776439. The reversal of 16685776411 is 11467758661.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16685776411 - 2¹⁵ = 16685743643 is a prime.

It is not a weakly prime, because it can be changed into another prime (16685776441) 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, 8342888205 + 8342888206.

It is an arithmetic number, because the mean of its divisors is an integer number (8342888206).

Almost surely, 2^16685776411 is an apocalyptic number.

16685776411 is a deficient number, since it is larger than the sum of its proper divisors (1).

16685776411 is an equidigital number, since it uses as much as digits as its factorization.

16685776411 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1693440, while the sum is 52.

The spelling of 16685776411 in words is "sixteen billion, six hundred eighty-five million, seven hundred seventy-six thousand, four hundred eleven".