Ezra 2:13 Halakhah

בְּנֵי֙ אֲדֹ֣נִיקָ֔ם שֵׁ֥שׁ מֵא֖וֹת שִׁשִּׁ֥ים וְשִׁשָּֽׁה׃ (ס)

The children of Adonikam, six hundred sixty and six.

Read halakhic rulings (Jewish law) on Ezra 2:13: and classical halakhic sources.