Even assuming they were all on the 1600 point scale, I had a higher aggregate score across only 4 sittings of the SAT (2 in HS, 2 in Junior High), and I'm not particularly unusual in my scores.
Main SAT: 2400 Math IIC: 800 Physics: 800 Biology: 790 Chemistry: 790
Solid scores for sure, but certainly not his only accomplishment I'm guessing.
SAT I: 2380 (V: 790, M: 800, W: 790), SAT II: Math L2: 800, Mol. Biology: 800, Chemistry: 800, World History: 800
I really hope they put the brunt of their evaluation on the interview process - I think at 20, there isn't really enough time for a track record of doing independent things well. They have clearly shown excellence at what they have been doing, but what they have been doing as a whole seems to be on the well-worn path of education and extracurricular activities/research.