11115663564 has 12 divisors (see below), whose sum is σ = 25936548344. Its totient is φ = 3705221184.

The previous prime is 11115663563. The next prime is 11115663577. The reversal of 11115663564 is 46536651111.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (11115663563) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 463152637 + ... + 463152660.

Almost surely, 2^11115663564 is an apocalyptic number.

It is an amenable number.

11115663564 is an abundant number, since it is smaller than the sum of its proper divisors (14820884780).

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

11115663564 is a wasteful number, since it uses less digits than its factorization.

11115663564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 926305304 (or 926305302 counting only the distinct ones).

The product of its digits is 64800, while the sum is 39.

The spelling of 11115663564 in words is "eleven billion, one hundred fifteen million, six hundred sixty-three thousand, five hundred sixty-four".