265413747314561 has 4 divisors (see below), whose sum is σ = 265414348027092. Its totient is φ = 265413146602032.

The previous prime is 265413747314539. The next prime is 265413747314567. The reversal of 265413747314561 is 165413747314562.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 35767576360000 + 229646170954561 = 5980600^2 + 15154081^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-265413747314561 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 265413747314561.

It is not an unprimeable number, because it can be changed into a prime (265413747314567) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 299693030 + ... + 300577343.

It is an arithmetic number, because the mean of its divisors is an integer number (66353587006773).

Almost surely, 2^{265413747314561} is an apocalyptic number.

It is an amenable number.

265413747314561 is a deficient number, since it is larger than the sum of its proper divisors (600712531).

265413747314561 is an equidigital number, since it uses as much as digits as its factorization.

265413747314561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 600712530.

The product of its digits is 50803200, while the sum is 59.

Subtracting from 265413747314561 its reverse (165413747314562), we obtain a palindrome (99999999999999).

The spelling of 265413747314561 in words is "two hundred sixty-five trillion, four hundred thirteen billion, seven hundred forty-seven million, three hundred fourteen thousand, five hundred sixty-one".