1135865568 has 48 divisors (see below), whose sum is σ = 2989735056. Its totient is φ = 377594880.

The previous prime is 1135865561. The next prime is 1135865569. The reversal of 1135865568 is 8655685311.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1135865561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19948 + ... + 51668.

It is an arithmetic number, because the mean of its divisors is an integer number (62286147).

Almost surely, 2^1135865568 is an apocalyptic number.

It is an amenable number.

1135865568 is an abundant number, since it is smaller than the sum of its proper divisors (1853869488).

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

1135865568 is a wasteful number, since it uses less digits than its factorization.

1135865568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32107 (or 32099 counting only the distinct ones).

The product of its digits is 864000, while the sum is 48.

The square root of 1135865568 is about 33702.6047658041. The cubic root of 1135865568 is about 1043.3795288493.

The spelling of 1135865568 in words is "one billion, one hundred thirty-five million, eight hundred sixty-five thousand, five hundred sixty-eight".