I don't know of any classical meanings for the full numbers off hand. (I've now looked and can't find any either... The numbers are relatively insignificant, they have some minor mathematical significance but most numbers do!)
They could be symbolic or personal. Do they mean anything to you in your everyday life? maybe you are being reminded or made aware of something or someone for some reason yet unknown... Maybe it's a hint toward a house number, phone number, Date of Birth etc... if so, look there.
Individually the numbers 1, 4 and 6 are all elemental, the repetition of 1 and 4 seem to indicate some connection to You and your home and work life, perhaps to new start or home? the 6 is the life number and would be suggestive of your personal attitudes and emotions toward life, family and those you love.
All in all, they seem quite natural numbers not pertaining to any thing bad...