2265344395991 has 2 divisors, whose sum is σ = 2265344395992. Its totient is φ = 2265344395990.

The previous prime is 2265344395973. The next prime is 2265344396009. The reversal of 2265344395991 is 1995934435622.

It is a balanced prime because it is at equal distance from previous prime (2265344395973) and next prime (2265344396009).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2265344395991 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 (2265344395591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1132672197995 + 1132672197996.

It is an arithmetic number, because the mean of its divisors is an integer number (1132672197996).

Almost surely, 2^{2265344395991} is an apocalyptic number.

2265344395991 is a deficient number, since it is larger than the sum of its proper divisors (1).

2265344395991 is an equidigital number, since it uses as much as digits as its factorization.

2265344395991 is an evil number, because the sum of its binary digits is even.

The product of its digits is 62985600, while the sum is 62.

The spelling of 2265344395991 in words is "two trillion, two hundred sixty-five billion, three hundred forty-four million, three hundred ninety-five thousand, nine hundred ninety-one".