Does anyone here have an idea?
As far as angel numbers, there are a few:
2 — Partnership, union, reunion, balance
6 — Family, romance, connection
222 — You are ready to receive love
33 — Prepare for the arrival of a new and exciting love
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As alluded to by @QueenMustang, it depends on what system you want to work in.
In yoga the 4th chakra is the heart center. It has a 6-pointed star in a circle with 12 petals. So you have some options 
What are you trying to do?
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7 according to Pythagoras and Qabalah
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