16685853211 has 2 divisors, whose sum is σ = 16685853212. Its totient is φ = 16685853210.

The previous prime is 16685853187. The next prime is 16685853227. The reversal of 16685853211 is 11235858661.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16685853211 is a prime.

It is not a weakly prime, because it can be changed into another prime (16685853251) 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, 8342926605 + 8342926606.

It is an arithmetic number, because the mean of its divisors is an integer number (8342926606).

Almost surely, 2^16685853211 is an apocalyptic number.

16685853211 is a deficient number, since it is larger than the sum of its proper divisors (1).

16685853211 is an equidigital number, since it uses as much as digits as its factorization.

16685853211 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 345600, while the sum is 46.

The spelling of 16685853211 in words is "sixteen billion, six hundred eighty-five million, eight hundred fifty-three thousand, two hundred eleven".