11338662564 has 18 divisors (see below), whose sum is σ = 28661619350. Its totient is φ = 3779554176.

The previous prime is 11338662553. The next prime is 11338662581. The reversal of 11338662564 is 46526683311.

11338662564 is a `hidden beast` number, since 1 + 1 + 3 + 3 + 86 + 6 + 2 + 564 = 666.

It can be written as a sum of positive squares in only one way, i.e., 7689536100 + 3649126464 = 87690^2 + 60408^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 157481389 + ... + 157481460.

Almost surely, 2^11338662564 is an apocalyptic number.

It is an amenable number.

11338662564 is an abundant number, since it is smaller than the sum of its proper divisors (17322956786).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11338662564 is a wasteful number, since it uses less digits than its factorization.

11338662564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314962859 (or 314962854 counting only the distinct ones).

The product of its digits is 622080, while the sum is 45.

The spelling of 11338662564 in words is "eleven billion, three hundred thirty-eight million, six hundred sixty-two thousand, five hundred sixty-four".