16686271603 has 2 divisors, whose sum is σ = 16686271604. Its totient is φ = 16686271602.

The previous prime is 16686271531. The next prime is 16686271607. The reversal of 16686271603 is 30617268661.

16686271603 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16686271603 - 2¹⁷ = 16686140531 is a prime.

It is not a weakly prime, because it can be changed into another prime (16686271607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8343135801 + 8343135802.

It is an arithmetic number, because the mean of its divisors is an integer number (8343135802).

Almost surely, 2^16686271603 is an apocalyptic number.

16686271603 is a deficient number, since it is larger than the sum of its proper divisors (1).

16686271603 is an equidigital number, since it uses as much as digits as its factorization.

16686271603 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 435456, while the sum is 46.

The spelling of 16686271603 in words is "sixteen billion, six hundred eighty-six million, two hundred seventy-one thousand, six hundred three".