12606557003 has 2 divisors, whose sum is σ = 12606557004. Its totient is φ = 12606557002.

The previous prime is 12606556987. The next prime is 12606557017. The reversal of 12606557003 is 30075560621.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12606557003 - 2⁴ = 12606556987 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (12606557063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6303278501 + 6303278502.

It is an arithmetic number, because the mean of its divisors is an integer number (6303278502).

Almost surely, 2^12606557003 is an apocalyptic number.

12606557003 is a deficient number, since it is larger than the sum of its proper divisors (1).

12606557003 is an equidigital number, since it uses as much as digits as its factorization.

12606557003 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 37800, while the sum is 35.

The spelling of 12606557003 in words is "twelve billion, six hundred six million, five hundred fifty-seven thousand, three".