16686016013 has 2 divisors, whose sum is σ = 16686016014. Its totient is φ = 16686016012.

The previous prime is 16686015989. The next prime is 16686016043. The reversal of 16686016013 is 31061068661.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12576949609 + 4109066404 = 112147^2 + 64102^2 .

It is a cyclic number.

It is not a de Polignac number, because 16686016013 - 2¹⁸ = 16685753869 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16686016043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8343008006 + 8343008007.

It is an arithmetic number, because the mean of its divisors is an integer number (8343008007).

Almost surely, 2^16686016013 is an apocalyptic number.

It is an amenable number.

16686016013 is a deficient number, since it is larger than the sum of its proper divisors (1).

16686016013 is an equidigital number, since it uses as much as digits as its factorization.

16686016013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31104, while the sum is 38.

The spelling of 16686016013 in words is "sixteen billion, six hundred eighty-six million, sixteen thousand, thirteen".