264331630251605 has 64 divisors (see below), whose sum is σ = 383988642301440. Its totient is φ = 170526116659200.

The previous prime is 264331630251589. The next prime is 264331630251613. The reversal of 264331630251605 is 506152036133462.

It is not a de Polignac number, because 264331630251605 - 2⁴ = 264331630251589 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 264331630251605.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 29236985885 + ... + 29236994925.

It is an arithmetic number, because the mean of its divisors is an integer number (5999822535960).

Almost surely, 2^{264331630251605} is an apocalyptic number.

It is an amenable number.

264331630251605 is a deficient number, since it is larger than the sum of its proper divisors (119657012049835).

264331630251605 is a wasteful number, since it uses less digits than its factorization.

264331630251605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23150.

The product of its (nonzero) digits is 2332800, while the sum is 47.

The spelling of 264331630251605 in words is "two hundred sixty-four trillion, three hundred thirty-one billion, six hundred thirty million, two hundred fifty-one thousand, six hundred five".