265696768 has 40 divisors (see below), whose sum is σ = 538425360. Its totient is φ = 130959360.

The previous prime is 265696763. The next prime is 265696771. The reversal of 265696768 is 867696562.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (265696763) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32698 + ... + 40006.

It is an arithmetic number, because the mean of its divisors is an integer number (13460634).

Almost surely, 2^265696768 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 265696768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (269212680).

265696768 is an abundant number, since it is smaller than the sum of its proper divisors (272728592).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

265696768 is an frugal number, since it uses more digits than its factorization.

265696768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7398 (or 7382 counting only the distinct ones).

The product of its digits is 6531840, while the sum is 55.

The square root of 265696768 is about 16300.2076060399. The cubic root of 265696768 is about 642.8782860160.

The spelling of 265696768 in words is "two hundred sixty-five million, six hundred ninety-six thousand, seven hundred sixty-eight".