That's a more modern thing and you know how things get inflated and over-dramatised. In the 60s, as I recall, he was estimated to be 160 but that was admitted to be a sheer guess. I have an IQ over 160 so I can't speak from experience but I think Einstein demonstrates thought patterns of 150 max. A lot was wrong with his thinking. At 160 people might be assumed to be starting to get above that sort of stuff as in the way he thought, which wasn't healthy. You should be able to figure a way out of it.
Having said that, I believe Jimmy Savile was 149 and perhaps that supports my guess for reasons you will find very difficult these days to research.
You don't have intelligence to use unless it is what you believe it is not