It is difficult to "feel" large numbers if one is not used to playing them without calculator. It seems that accuracy beyond three digits is an interesting phen

It is difficult to "feel" large numbers if one is not used to playing them without calculator. It seems that accuracy beyond three digits is an interesting phenomenon, e.g. 5.2 million is easier to comprehend than 5,263,921. Consequently, more effort is needed to imagine bigger magnitudes from million, billion, trillion and so on. I'm curious to know if there is a correlation between eidetic memory and ability to visualize huge numbers.