אֵ֛לֶּה מִשְׁפְּחֹ֥ת יְהוּדָ֖ה לִפְקֻדֵיהֶ֑ם שִׁשָּׁ֧ה וְשִׁבְעִ֛ים אֶ֖לֶף וַחֲמֵ֥שׁ מֵאֽוֹת׃ (ס)
These are the families of Judah according to those that were numbered of them, threescore and sixteen thousand and five hundred.
Read kabbalistic (mystical) interpretation of Numbers 26:22: and classical mystical sources.