225636438343663 has 2 divisors, whose sum is σ = 225636438343664. Its totient is φ = 225636438343662.

The previous prime is 225636438343627. The next prime is 225636438343699. The reversal of 225636438343663 is 366343834636522.

It is a balanced prime because it is at equal distance from previous prime (225636438343627) and next prime (225636438343699).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-225636438343663 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 225636438343595 and 225636438343604.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (225636438341663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112818219171831 + 112818219171832.

It is an arithmetic number, because the mean of its divisors is an integer number (112818219171832).

Almost surely, 2^{225636438343663} is an apocalyptic number.

225636438343663 is a deficient number, since it is larger than the sum of its proper divisors (1).

225636438343663 is an equidigital number, since it uses as much as digits as its factorization.

225636438343663 is an evil number, because the sum of its binary digits is even.

The product of its digits is 806215680, while the sum is 64.

The spelling of 225636438343663 in words is "two hundred twenty-five trillion, six hundred thirty-six billion, four hundred thirty-eight million, three hundred forty-three thousand, six hundred sixty-three".