How did I figure out the $130,169.69 number? Taking max taxable income for that year and used the rate the ssa.gov showed for that year. Added the whole shooting match up for the last 45 years, and that is the absolute top of what someone, by law, could pay into the system. Any excess contributions are returned to the payer at the end of the tax year the overage occurred.
You forgot to add in the employer matching amounts.
What if you continue working to 70? Actually, my "age" isn't 65, it's 66 and 10 months due to the ratcheting up of the retirement age.