265664334331 has 12 divisors (see below), whose sum is σ = 292465434856. Its totient is φ = 241137357120.

The previous prime is 265664334323. The next prime is 265664334337. The reversal of 265664334331 is 133433466562.

It is not a de Polignac number, because 265664334331 - 2³ = 265664334323 is a prime.

It is a super-2 number, since 2×265664334331² (a number of 24 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (265664334337) 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 11 ways as a sum of consecutive naturals, for example, 1629486 + ... + 1785091.

Almost surely, 2^265664334331 is an apocalyptic number.

265664334331 is a deficient number, since it is larger than the sum of its proper divisors (26801100525).

265664334331 is a wasteful number, since it uses less digits than its factorization.

265664334331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3415242 (or 3415231 counting only the distinct ones).

The product of its digits is 2799360, while the sum is 46.

It can be divided in two parts, 265664 and 334331, that added together give a palindrome (599995).

The spelling of 265664334331 in words is "two hundred sixty-five billion, six hundred sixty-four million, three hundred thirty-four thousand, three hundred thirty-one".