11611143560 has 16 divisors (see below), whose sum is σ = 26125073100. Its totient is φ = 4644457408.

The previous prime is 11611143559. The next prime is 11611143563. The reversal of 11611143560 is 6534111611.

11611143560 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 11563561156 + 47582404 = 107534^2 + 6898^2 .

It is not an unprimeable number, because it can be changed into a prime (11611143563) 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 3 ways as a sum of consecutive naturals, for example, 145139255 + ... + 145139334.

Almost surely, 2^11611143560 is an apocalyptic number.

11611143560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11611143560 is an abundant number, since it is smaller than the sum of its proper divisors (14513929540).

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

11611143560 is a wasteful number, since it uses less digits than its factorization.

11611143560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290278600 (or 290278596 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 29.

The spelling of 11611143560 in words is "eleven billion, six hundred eleven million, one hundred forty-three thousand, five hundred sixty".