16585273853 has 2 divisors, whose sum is σ = 16585273854. Its totient is φ = 16585273852.

The previous prime is 16585273847. The next prime is 16585273919. The reversal of 16585273853 is 35837258561.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14443713124 + 2141560729 = 120182^2 + 46277^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16585273853 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16585273795 and 16585273804.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16585273553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8292636926 + 8292636927.

It is an arithmetic number, because the mean of its divisors is an integer number (8292636927).

Almost surely, 2^16585273853 is an apocalyptic number.

It is an amenable number.

16585273853 is a deficient number, since it is larger than the sum of its proper divisors (1).

16585273853 is an equidigital number, since it uses as much as digits as its factorization.

16585273853 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6048000, while the sum is 53.

The spelling of 16585273853 in words is "sixteen billion, five hundred eighty-five million, two hundred seventy-three thousand, eight hundred fifty-three".