16585264247 has 2 divisors, whose sum is σ = 16585264248. Its totient is φ = 16585264246.

The previous prime is 16585264211. The next prime is 16585264253. The reversal of 16585264247 is 74246258561.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16585264247 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16585264195 and 16585264204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16585264147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8292632123 + 8292632124.

It is an arithmetic number, because the mean of its divisors is an integer number (8292632124).

Almost surely, 2^16585264247 is an apocalyptic number.

16585264247 is a deficient number, since it is larger than the sum of its proper divisors (1).

16585264247 is an equidigital number, since it uses as much as digits as its factorization.

16585264247 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3225600, while the sum is 50.

The spelling of 16585264247 in words is "sixteen billion, five hundred eighty-five million, two hundred sixty-four thousand, two hundred forty-seven".