264440633312605 has 8 divisors (see below), whose sum is σ = 317330938465632. Its totient is φ = 211551054323088.

The previous prime is 264440633312591. The next prime is 264440633312659. The reversal of 264440633312605 is 506213336044462.

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 264440633312605 - 2¹³ = 264440633304413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 180739399 + ... + 182196628.

It is an arithmetic number, because the mean of its divisors is an integer number (39666367308204).

Almost surely, 2^{264440633312605} is an apocalyptic number.

It is an amenable number.

264440633312605 is a deficient number, since it is larger than the sum of its proper divisors (52890305153027).

264440633312605 is a wasteful number, since it uses less digits than its factorization.

264440633312605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363081755.

The product of its (nonzero) digits is 7464960, while the sum is 49.

The spelling of 264440633312605 in words is "two hundred sixty-four trillion, four hundred forty billion, six hundred thirty-three million, three hundred twelve thousand, six hundred five".