Which Mesopotamian gods had sacred numbers?

Question

In ancient Mesopotamian cuneiform, there were a few different ways of writing a deity's name. You could spell it out, you could write one of their divine purviews, or you could use a "sacred number". If you wanted to talk about the sun-god Shamash, for example, you could spell out his name šá-maš, you could write the sign UTU "sun", or you could write the number 20.

Which deities had these sacred numbers, and how were they assigned? A couple of them make sense to me—30 for the moon-god, since it takes about a month for the moon to go through its phases—but most of them seem very arbitrary.

Answer 1

To start things off, here are the ones I know of, taken from here:

• 10 for Adad, god of storms and power
• 15 for Ishtar, goddess of love and war
• 20 for Shamash, god of the sun and justice
• 30 for Sîn, god of the moon and fertility
• 40 or 60 for Ea, god of magic and water
• 50 for Enlil, god of authority
• 60 for Anu, god of the sky and kingship; this could also be read as 1, thanks to their place value system
• 3600 for Anshar and Kishar, primordial heaven and earth, but this sign should probably be read as "everything" instead of as "3600"

I don't know when or why these were used, though.