12605512057 has 8 divisors (see below), whose sum is σ = 13467005600. Its totient is φ = 11763823104.

The previous prime is 12605512009. The next prime is 12605512067. The reversal of 12605512057 is 75021550621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12605512057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12605512067) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4949832 + ... + 4952377.

It is an arithmetic number, because the mean of its divisors is an integer number (1683375700).

Almost surely, 2^12605512057 is an apocalyptic number.

It is an amenable number.

12605512057 is a deficient number, since it is larger than the sum of its proper divisors (861493543).

12605512057 is an equidigital number, since it uses as much as digits as its factorization.

12605512057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9902295.

The product of its (nonzero) digits is 21000, while the sum is 34.

The spelling of 12605512057 in words is "twelve billion, six hundred five million, five hundred twelve thousand, fifty-seven".