12583311565 has 16 divisors (see below), whose sum is σ = 16567929216. Its totient is φ = 9098593600.

The previous prime is 12583311397. The next prime is 12583311641. The reversal of 12583311565 is 56511338521.

It is not a de Polignac number, because 12583311565 - 2⁹ = 12583311053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 651721 + ... + 670750.

It is an arithmetic number, because the mean of its divisors is an integer number (1035495576).

Almost surely, 2^12583311565 is an apocalyptic number.

It is an amenable number.

12583311565 is a deficient number, since it is larger than the sum of its proper divisors (3984617651).

12583311565 is a wasteful number, since it uses less digits than its factorization.

12583311565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1322660.

The product of its digits is 108000, while the sum is 40.

The spelling of 12583311565 in words is "twelve billion, five hundred eighty-three million, three hundred eleven thousand, five hundred sixty-five".