12585104061 has 4 divisors (see below), whose sum is σ = 16780138752. Its totient is φ = 8390069372.

The previous prime is 12585104047. The next prime is 12585104083. The reversal of 12585104061 is 16040158521.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12585104061 - 2⁷ = 12585103933 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12585184061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2097517341 + ... + 2097517346.

It is an arithmetic number, because the mean of its divisors is an integer number (4195034688).

Almost surely, 2^12585104061 is an apocalyptic number.

It is an amenable number.

12585104061 is a deficient number, since it is larger than the sum of its proper divisors (4195034691).

12585104061 is an equidigital number, since it uses as much as digits as its factorization.

12585104061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4195034690.

The product of its (nonzero) digits is 9600, while the sum is 33.

The spelling of 12585104061 in words is "twelve billion, five hundred eighty-five million, one hundred four thousand, sixty-one".