265656027263 has 16 divisors (see below), whose sum is σ = 291236190336. Its totient is φ = 240315255840.

The previous prime is 265656027257. The next prime is 265656027281. The reversal of 265656027263 is 362720656562.

It is not a de Polignac number, because 265656027263 - 2²⁴ = 265639250047 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 (265656027233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4899620 + ... + 4953542.

It is an arithmetic number, because the mean of its divisors is an integer number (18202261896).

Almost surely, 2^265656027263 is an apocalyptic number.

265656027263 is a deficient number, since it is larger than the sum of its proper divisors (25580163073).

265656027263 is a wasteful number, since it uses less digits than its factorization.

265656027263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56134.

The product of its (nonzero) digits is 5443200, while the sum is 50.

The spelling of 265656027263 in words is "two hundred sixty-five billion, six hundred fifty-six million, twenty-seven thousand, two hundred sixty-three".