264236505265 has 16 divisors (see below), whose sum is σ = 322868122560. Its totient is φ = 207542105280.

The previous prime is 264236505257. The next prime is 264236505277. The reversal of 264236505265 is 562505632462.

264236505265 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 264236505265 - 2³ = 264236505257 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 15 ways as a sum of consecutive naturals, for example, 336906 + ... + 801235.

It is an arithmetic number, because the mean of its divisors is an integer number (20179257660).

Almost surely, 2^264236505265 is an apocalyptic number.

It is an amenable number.

264236505265 is a deficient number, since it is larger than the sum of its proper divisors (58631617295).

264236505265 is a wasteful number, since it uses less digits than its factorization.

264236505265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1138992.

The product of its (nonzero) digits is 2592000, while the sum is 46.

The spelling of 264236505265 in words is "two hundred sixty-four billion, two hundred thirty-six million, five hundred five thousand, two hundred sixty-five".