It is as JdeBP has stated. You need to use a tool that can handle your WQL (sql-like) statement. You could switch from using the cmd.exe command shell and use the powershell.exe command shell to run your query. It offers a cmdlet that allows for processing of WQL statements. Try this:
Open your command window and type in Powershell
and hit enter. This will cause an instance of powershell to run inside of your current cmd session. Now that you are in powershell, you can use the Get-WmiObject commandlet to query for your information:
get-wmiobject -query "select * from win32_processor where addresswidth='64'"
and hit enter. This should return you the information you are trying to get at. Once you are done, you can type exit
to end the powershell session you were running inside of your cmd session.
Note that you also can open Powershell directly instead of going thru cmd.exe. just type "Powershell" in the Run box or the search field at the bottom of the start menu, and a powershell window will open up on your screen, just like if you use cmd.exe.
If for some reason you are unable to bring up powershell, you could check and make sure it is installed. On my Win 7 install it lives here:
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
Hope this helps,
Related reading:
Powershell Introduction
About the Get-WmiObject cmdlet