Shintoism does not have one main god. It has over 8 million different kamis (spiritual beings that exist in animals, plants, nature, etc). A large majority of Japanese people worship Amaterasu as the "main" kami of Shintoism. Amaterasu is the goddess of the sun.
Kami
Yes. In Shintoism and ancient Shintoism, there's a god for everything.
Shintoism or belief in the sun God, Amaterasu
they both have a god and or a founder
There are references to "Eight Million gods".
god,/spirits/deities of Shintoism (Japan's religion)
If you are talking simply of Shintoism, there have never been any holy writings.
Okami in English translates to - Wolf God. Omikami is the name of Amaterasu and her full name is - Amaterasu Omikami. Not much of a difference but Kami is the Japanese word for God.
Amaterasu is the the sun goddess in the Shinto pantheon.
There is no god or goddess. There are Kami. "Eight million kami" - which is meant "many kami".
It's a goddess actually in Japanese Shintoism, she's the mother of the world.
Shinto is mostly polytheistic, but has sects that have pantheistic (God is everywhere) features.