265206646603103 has 2 divisors, whose sum is σ = 265206646603104. Its totient is φ = 265206646603102.

The previous prime is 265206646603057. The next prime is 265206646603123. The reversal of 265206646603103 is 301306646602562.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 265206646603103 - 2⁶ = 265206646603039 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (265206646603123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132603323301551 + 132603323301552.

It is an arithmetic number, because the mean of its divisors is an integer number (132603323301552).

Almost surely, 2^{265206646603103} is an apocalyptic number.

265206646603103 is a deficient number, since it is larger than the sum of its proper divisors (1).

265206646603103 is an equidigital number, since it uses as much as digits as its factorization.

265206646603103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5598720, while the sum is 50.

The spelling of 265206646603103 in words is "two hundred sixty-five trillion, two hundred six billion, six hundred forty-six million, six hundred three thousand, one hundred three".