265640324613265 has 16 divisors (see below), whose sum is σ = 364506570114048. Its totient is φ = 182053445841216.

The previous prime is 265640324613247. The next prime is 265640324613277. The reversal of 265640324613265 is 562316423046562.

265640324613265 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 265640324613265 - 2⁵ = 265640324613233 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2081593782 + ... + 2081721391.

It is an arithmetic number, because the mean of its divisors is an integer number (22781660632128).

Almost surely, 2^{265640324613265} is an apocalyptic number.

It is an amenable number.

265640324613265 is a deficient number, since it is larger than the sum of its proper divisors (98866245500783).

265640324613265 is a wasteful number, since it uses less digits than its factorization.

265640324613265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4163317008.

The product of its (nonzero) digits is 37324800, while the sum is 55.

The spelling of 265640324613265 in words is "two hundred sixty-five trillion, six hundred forty billion, three hundred twenty-four million, six hundred thirteen thousand, two hundred sixty-five".