If you want to know your full retirement age, then you can view that on the Social Security website.
According to Social Security:
You can retire at any time between age 62 and full retirement age. However, if you start benefits early, your benefits are reduced a fraction of a percent for each month before your full retirement age.It's important to note that if you receive early retirement, the reduced monthly benefits that you receive are the benefits that you will receive for the rest of your life. So, if you receive 25% less benefits than you would at full retirement age, you will receive 25% less until the day you die. Some people think that the penalty is removed once they reach full retirement age but that is not the case.
Those who are between the ages of 62 and 65 years old have the ability to file for Social Security early retirement benefits and also apply for Social Security disability benefits at the same time. What happens is you start receiving the reduced monthly benefits through early retirement and if you are eventually awarded Social Security Disability benefits your monthly benefits will be increased to your full retirement amount. (If your Social Security Disability application is denied however you are stuck receiving the reduced early retirement benefits).
If you apply for early retirement while waiting for your disability application to be processed then if you are eventually awarded disability you may be able to recover the difference in benefits retroactively for the months that the disability application was being processed by Social Security.