The most recent version of Teamviewer now is version 9 (at time of writing). And for even though the installer is available for the 64bits architecture, some of you may face some difficulties trying to install it on Ubuntu 13.10 64bits (I don't know about any other version of Ubuntu but my Linux Mint 16 does not has this kind of problem). Actually the problem is because Teamviewer needs ia32-libs (one of it's dependencies) but this package is not available for recent Multiarch