265163420424015 has 24 divisors (see below), whose sum is σ = 459667433027088. Its totient is φ = 141404848546560.

The previous prime is 265163420423987. The next prime is 265163420424059. The reversal of 265163420424015 is 510424024361562.

It is a happy number.

265163420424015 is a `hidden beast` number, since 2 + 6 + 5 + 1 + 6 + 34 + 204 + 2 + 401 + 5 = 666.

It is not a de Polignac number, because 265163420424015 - 2⁷ = 265163420423887 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 325470849 + ... + 326284538.

It is an arithmetic number, because the mean of its divisors is an integer number (19152809709462).

Almost surely, 2^{265163420424015} is an apocalyptic number.

265163420424015 is a deficient number, since it is larger than the sum of its proper divisors (194504012603073).

265163420424015 is a wasteful number, since it uses less digits than its factorization.

265163420424015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 651764439 (or 651764436 counting only the distinct ones).

The product of its (nonzero) digits is 1382400, while the sum is 45.

Adding to 265163420424015 its reverse (510424024361562), we get a palindrome (775587444785577).

The spelling of 265163420424015 in words is "two hundred sixty-five trillion, one hundred sixty-three billion, four hundred twenty million, four hundred twenty-four thousand, fifteen".