264641811338 has 16 divisors (see below), whose sum is σ = 398283864264. Its totient is φ = 131880806400.

The previous prime is 264641811323. The next prime is 264641811367. The reversal of 264641811338 is 833118146462.

It can be written as a sum of positive squares in 4 ways, for example, as 118616181649 + 146025629689 = 344407^2 + 382133^2 .

It is a junction number, because it is equal to n+sod(n) for n = 264641811292 and 264641811301.

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, 1842938 + ... + 1981338.

Almost surely, 2^264641811338 is an apocalyptic number.

264641811338 is a deficient number, since it is larger than the sum of its proper divisors (133642052926).

264641811338 is a wasteful number, since it uses less digits than its factorization.

264641811338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141577.

The product of its digits is 663552, while the sum is 47.

The spelling of 264641811338 in words is "two hundred sixty-four billion, six hundred forty-one million, eight hundred eleven thousand, three hundred thirty-eight".