12566236003 has 2 divisors, whose sum is σ = 12566236004. Its totient is φ = 12566236002.

The previous prime is 12566235989. The next prime is 12566236027. The reversal of 12566236003 is 30063266521.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12566236003 - 2⁵ = 12566235971 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12566236003.

It is not a weakly prime, because it can be changed into another prime (12566236073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6283118001 + 6283118002.

It is an arithmetic number, because the mean of its divisors is an integer number (6283118002).

Almost surely, 2^12566236003 is an apocalyptic number.

12566236003 is a deficient number, since it is larger than the sum of its proper divisors (1).

12566236003 is an equidigital number, since it uses as much as digits as its factorization.

12566236003 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 38880, while the sum is 34.

The spelling of 12566236003 in words is "twelve billion, five hundred sixty-six million, two hundred thirty-six thousand, three".