2265122215637 has 2 divisors, whose sum is σ = 2265122215638. Its totient is φ = 2265122215636.

The previous prime is 2265122215613. The next prime is 2265122215649. The reversal of 2265122215637 is 7365122215622.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2088397826641 + 176724388996 = 1445129^2 + 420386^2 .

It is a cyclic number.

It is not a de Polignac number, because 2265122215637 - 2⁸ = 2265122215381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2265122215667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1132561107818 + 1132561107819.

It is an arithmetic number, because the mean of its divisors is an integer number (1132561107819).

Almost surely, 2^{2265122215637} is an apocalyptic number.

It is an amenable number.

2265122215637 is a deficient number, since it is larger than the sum of its proper divisors (1).

2265122215637 is an equidigital number, since it uses as much as digits as its factorization.

2265122215637 is an evil number, because the sum of its binary digits is even.

The product of its digits is 604800, while the sum is 44.

The spelling of 2265122215637 in words is "two trillion, two hundred sixty-five billion, one hundred twenty-two million, two hundred fifteen thousand, six hundred thirty-seven".