265655600279 has 2 divisors, whose sum is σ = 265655600280. Its totient is φ = 265655600278.

The previous prime is 265655600269. The next prime is 265655600297. The reversal of 265655600279 is 972006556562.

Together with next prime (265655600297) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 265655600279 - 2⁴ = 265655600263 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 265655600279.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (265655600269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132827800139 + 132827800140.

It is an arithmetic number, because the mean of its divisors is an integer number (132827800140).

Almost surely, 2^265655600279 is an apocalyptic number.

265655600279 is a deficient number, since it is larger than the sum of its proper divisors (1).

265655600279 is an equidigital number, since it uses as much as digits as its factorization.

265655600279 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6804000, while the sum is 53.

The spelling of 265655600279 in words is "two hundred sixty-five billion, six hundred fifty-five million, six hundred thousand, two hundred seventy-nine".