11564113026 has 64 divisors (see below), whose sum is σ = 23937638400. Its totient is φ = 3722294976.

The previous prime is 11564112991. The next prime is 11564113027. The reversal of 11564113026 is 62031146511.

It is a happy number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 11564112984 and 11564113002.

It is not an unprimeable number, because it can be changed into a prime (11564113027) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10426960 + ... + 10428068.

It is an arithmetic number, because the mean of its divisors is an integer number (374025600).

Almost surely, 2^11564113026 is an apocalyptic number.

11564113026 is an abundant number, since it is smaller than the sum of its proper divisors (12373525374).

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

11564113026 is a wasteful number, since it uses less digits than its factorization.

11564113026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1623.

The product of its (nonzero) digits is 4320, while the sum is 30.

Adding to 11564113026 its reverse (62031146511), we get a palindrome (73595259537).

The spelling of 11564113026 in words is "eleven billion, five hundred sixty-four million, one hundred thirteen thousand, twenty-six".