How can I tell if I have Google Chrome 64-bit installed?

I think I just installed Chrome 64-bit, but I can't tell. About Google Chrome screen shows only Version 37.0.2062.94 m and I don't have anything in my 64-bit Program Files folder. Is there a way to tell if I am using 32-bit or 64-bit?

If you open task manager you should see (32 bit) beside the executeable name if it's 32 bit, and nothing if it's 64 bit.

You can do it through task manager as CammRobb suggested (works for all programs) or in Chrome go to the About Google Chrome page (type in the adress bar chrome://help/ or chrome://chrome/) and you will see the version and the architecture.