1135553568 has 24 divisors (see below), whose sum is σ = 2980828368. Its totient is φ = 378517824.

The previous prime is 1135553561. The next prime is 1135553593. The reversal of 1135553568 is 8653555311.

It is a tau number, because it is divible by the number of its divisors (24).

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (1135553561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5914246 + ... + 5914437.

It is an arithmetic number, because the mean of its divisors is an integer number (124201182).

Almost surely, 2^1135553568 is an apocalyptic number.

It is an amenable number.

1135553568 is an abundant number, since it is smaller than the sum of its proper divisors (1845274800).

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

1135553568 is a wasteful number, since it uses less digits than its factorization.

1135553568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11828696 (or 11828688 counting only the distinct ones).

The product of its digits is 270000, while the sum is 42.

The square root of 1135553568 is about 33697.9757255536. The cubic root of 1135553568 is about 1043.2839881349.

The spelling of 1135553568 in words is "one billion, one hundred thirty-five million, five hundred fifty-three thousand, five hundred sixty-eight".