By the numbers

Daniel Tammett

10,000: Numbers Tammett, an autistic savant, experiences as colors, textures and pictures in his head

37: Number Tammett experiences as lumpy like porridge

89: Number he experiences as falling snow

7: Number of languages spoken by Tammett

1: Number of weeks it takes him to learn a new language

22,514: Decimal places of pi Tammett recited from memory, breaking the European record in 2004

Source: http://www.optimnem.co.uk/index.php