11564113128 has 16 divisors (see below), whose sum is σ = 28910282880. Its totient is φ = 3854704368.

The previous prime is 11564113111. The next prime is 11564113139. The reversal of 11564113128 is 82131146511.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 240919000 + ... + 240919047.

It is an arithmetic number, because the mean of its divisors is an integer number (1806892680).

Almost surely, 2^11564113128 is an apocalyptic number.

It is an amenable number.

11564113128 is an abundant number, since it is smaller than the sum of its proper divisors (17346169752).

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

11564113128 is a wasteful number, since it uses less digits than its factorization.

11564113128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 481838056 (or 481838052 counting only the distinct ones).

The product of its digits is 5760, while the sum is 33.

Adding to 11564113128 its reverse (82131146511), we get a palindrome (93695259639).

The spelling of 11564113128 in words is "eleven billion, five hundred sixty-four million, one hundred thirteen thousand, one hundred twenty-eight".