2665231265065 has 8 divisors (see below), whose sum is σ = 3214349265600. Its totient is φ = 2121470513712.

The previous prime is 2665231264999. The next prime is 2665231265141. The reversal of 2665231265065 is 5605621325662.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2665231265065 - 2²³ = 2665222876457 is a prime.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1339311199 + ... + 1339313188.

It is an arithmetic number, because the mean of its divisors is an integer number (401793658200).

Almost surely, 2^{2665231265065} is an apocalyptic number.

It is an amenable number.

2665231265065 is a deficient number, since it is larger than the sum of its proper divisors (549118000535).

2665231265065 is a wasteful number, since it uses less digits than its factorization.

2665231265065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2678624591.

The product of its (nonzero) digits is 3888000, while the sum is 49.

The spelling of 2665231265065 in words is "two trillion, six hundred sixty-five billion, two hundred thirty-one million, two hundred sixty-five thousand, sixty-five".