Women make up 56% of all Social Security beneficiaries age 62 and older. More surprisingly 66% of all beneficiaries age 85 and older are women. Only 45% of women aged 65 or older were married in 2012, compared with 75% of men, according to the Department of Health and Human Services. Women should be informed and ensure that they receive the most from Social Security. Here are four things to keep in mind.