According to Social Security Administration, How Many People Are over 150 Years Old?

Musk shared via X on Sunday that there are hundreds of thousands, if not millions, of Americans listed as alive in the Social Security Administration databases who have probably been dead for quite a while. So how old is the oldest person? When were these records created? Is this an example of SS being sloppy or is this straight out fraud?

https://www.msn.com/en-us/money/companies/social-security-fraud-nearly-1-5-million-americans-listed-as-over-150-years-old-1-041-over-220-years-old/ar-AA1zen8D?ocid=msedgntp&pc=ASTS&cvid=095d264cea4a47c287d422223eafa449&ei=62