265256020413 has 12 divisors (see below), whose sum is σ = 383326403200. Its totient is φ = 176754815496.

The previous prime is 265256020399. The next prime is 265256020429. The reversal of 265256020413 is 314020652562.

265256020413 is a `hidden beast` number, since 2 + 6 + 5 + 2 + 5 + 602 + 0 + 41 + 3 = 666.

It is not a de Polignac number, because 265256020413 - 2⁶ = 265256020349 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 (265256021413) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6857263 + ... + 6895836.

Almost surely, 2^265256020413 is an apocalyptic number.

It is an amenable number.

265256020413 is a deficient number, since it is larger than the sum of its proper divisors (118070382787).

265256020413 is a wasteful number, since it uses less digits than its factorization.

265256020413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13755248 (or 13755245 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

Adding to 265256020413 its reverse (314020652562), we get a palindrome (579276672975).

The spelling of 265256020413 in words is "two hundred sixty-five billion, two hundred fifty-six million, twenty thousand, four hundred thirteen".