12585783165 has 16 divisors (see below), whose sum is σ = 20138760000. Its totient is φ = 6711915392.

The previous prime is 12585783163. The next prime is 12585783191. The reversal of 12585783165 is 56138758521.

It is a cyclic number.

It is not a de Polignac number, because 12585783165 - 2¹ = 12585783163 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12585783163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 267586 + ... + 311084.

It is an arithmetic number, because the mean of its divisors is an integer number (1258672500).

Almost surely, 2^12585783165 is an apocalyptic number.

12585783165 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12585783165 is a deficient number, since it is larger than the sum of its proper divisors (7552976835).

12585783165 is a wasteful number, since it uses less digits than its factorization.

12585783165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62796.

The product of its digits is 2016000, while the sum is 51.

The spelling of 12585783165 in words is "twelve billion, five hundred eighty-five million, seven hundred eighty-three thousand, one hundred sixty-five".