Looking into codes and the number relation to some latin letters John have you ever tried any of these methods? Taken from a web math page.
The previous one suggests a form of word play that was popular several centuries ago: the chronogram. A chronogram attaches a numerical value to an English phrase or sentence by summing up the values of any Roman numerals it contains. (Back then, U,V and I,J were often considered the same letter for the purpose of the chronogram, however I prefer to distinguish them.) What's the best English chronogram for 666? Here's one that's pretty apt:
Expect The Devil.
Note that four of the six numerals are contained in the last word.