Yes. Corona Renderer is designed in such a way that it works fine on computers with 64 or more threads, and it fully utilizes all the available computing power. This is confirmed by our internal tests, and by reports from our users. An example of such setup is dual Xeon E5-2699 and you can see results from such machines on our official benchmark list.
Some other applications might however not support systems with 64 or more threads, and this may result in general performance issues. You can find discussion about various issues identified by our users and solutions to them at our forum: