16585273919 has 2 divisors, whose sum is σ = 16585273920. Its totient is φ = 16585273918.

The previous prime is 16585273853. The next prime is 16585273921. The reversal of 16585273919 is 91937258561.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16585273919 - 2¹⁶ = 16585208383 is a prime.

It is a super-2 number, since 2×16585273919² (a number of 21 digits) contains 22 as substring.

Together with 16585273921, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16585273949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8292636959 + 8292636960.

It is an arithmetic number, because the mean of its divisors is an integer number (8292636960).

Almost surely, 2^16585273919 is an apocalyptic number.

16585273919 is a deficient number, since it is larger than the sum of its proper divisors (1).

16585273919 is an equidigital number, since it uses as much as digits as its factorization.

16585273919 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4082400, while the sum is 56.

The spelling of 16585273919 in words is "sixteen billion, five hundred eighty-five million, two hundred seventy-three thousand, nine hundred nineteen".