245663415233 has 2 divisors, whose sum is σ = 245663415234. Its totient is φ = 245663415232.

The previous prime is 245663415209. The next prime is 245663415251. The reversal of 245663415233 is 332514366542.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 208279966129 + 37383449104 = 456377^2 + 193348^2 .

It is a cyclic number.

It is not a de Polignac number, because 245663415233 - 2⁶ = 245663415169 is a prime.

It is not a weakly prime, because it can be changed into another prime (245663415733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122831707616 + 122831707617.

It is an arithmetic number, because the mean of its divisors is an integer number (122831707617).

Almost surely, 2^245663415233 is an apocalyptic number.

It is an amenable number.

245663415233 is a deficient number, since it is larger than the sum of its proper divisors (1).

245663415233 is an equidigital number, since it uses as much as digits as its factorization.

245663415233 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1555200, while the sum is 44.

The spelling of 245663415233 in words is "two hundred forty-five billion, six hundred sixty-three million, four hundred fifteen thousand, two hundred thirty-three".