i did some research. It looks like the 32bit libraries may be able to be installed on a 64bit version. But aren't by default as the are not needed. Since this isn't installed via a package manager, dependencies are not auto installed (which in this case is the 32 bit libraries).
32bit comes with some significant memory limitations and what not. I believe the only reason to have 32bit binaries for any OS would be for backwards compatibility with old computers that don't have 64bit processors.