265022127260261 has 16 divisors (see below), whose sum is σ = 310271088183168. Its totient is φ = 221620376332800.

The previous prime is 265022127260227. The next prime is 265022127260263. The reversal of 265022127260261 is 162062721220562.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 265022127260261 - 2¹⁰ = 265022127259237 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (265022127260263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72847421 + ... + 76398893.

It is an arithmetic number, because the mean of its divisors is an integer number (19391943011448).

Almost surely, 2^{265022127260261} is an apocalyptic number.

It is an amenable number.

265022127260261 is a deficient number, since it is larger than the sum of its proper divisors (45248960922907).

265022127260261 is a wasteful number, since it uses less digits than its factorization.

265022127260261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3811532.

The product of its (nonzero) digits is 483840, while the sum is 44.

The spelling of 265022127260261 in words is "two hundred sixty-five trillion, twenty-two billion, one hundred twenty-seven million, two hundred sixty thousand, two hundred sixty-one".