You can in certain situations.
I see, to request these benefits, can I do it online or on the web? While outside of the United States, can I apply for these benefits?
Sure, no problem with that. All you need to do is to contact the nearest U.S Social Security office, or go to your nearest U.S Embassy or consulate.
Soryy to ask, but what was that section you mentioned in case to be never married?