2265122215623 has 16 divisors (see below), whose sum is σ = 3193001532800. Its totient is φ = 1424356319520.

The previous prime is 2265122215613. The next prime is 2265122215637. The reversal of 2265122215623 is 3265122215622.

It is not a de Polignac number, because 2265122215623 - 2¹³ = 2265122207431 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2265122215613) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86753293 + ... + 86779398.

It is an arithmetic number, because the mean of its divisors is an integer number (199562595800).

Almost surely, 2^{2265122215623} is an apocalyptic number.

2265122215623 is a deficient number, since it is larger than the sum of its proper divisors (927879317177).

2265122215623 is a wasteful number, since it uses less digits than its factorization.

2265122215623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173532942.

The product of its digits is 172800, while the sum is 39.

Subtracting 2265122215623 from its reverse (3265122215622), we obtain a palindrome (999999999999).

The spelling of 2265122215623 in words is "two trillion, two hundred sixty-five billion, one hundred twenty-two million, two hundred fifteen thousand, six hundred twenty-three".