265161252645615 has 16 divisors (see below), whose sum is σ = 428631798093408. Its totient is φ = 139961403457536.

The previous prime is 265161252645613. The next prime is 265161252645617. The reversal of 265161252645615 is 516546252161562.

It is an interprime number because it is at equal distance from previous prime (265161252645613) and next prime (265161252645617).

It is not a de Polignac number, because 265161252645615 - 2¹ = 265161252645613 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (265161252645613) 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, 91120703922 + ... + 91120706831.

It is an arithmetic number, because the mean of its divisors is an integer number (26789487380838).

Almost surely, 2^{265161252645615} is an apocalyptic number.

265161252645615 is a deficient number, since it is larger than the sum of its proper divisors (163470545447793).

265161252645615 is a wasteful number, since it uses less digits than its factorization.

265161252645615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182241410858.

The product of its digits is 25920000, while the sum is 57.

The spelling of 265161252645615 in words is "two hundred sixty-five trillion, one hundred sixty-one billion, two hundred fifty-two million, six hundred forty-five thousand, six hundred fifteen".