He's represented as a golden sun disc with a shining face.
The Sapa Inca, as ruler of the people, claimed divine heritage and direct descent from the Sun. The Incan emperors were believed to be Inti's manifestation/living representation on Earth and were thus hot-tempered and prone to sunspots.
The emperor's family was believed to be
descended from Inti.
He taught his son Manco Cápac and his daughter Mama Ocllo the arts of civilization and they were sent to earth to pass this knowledge to mankind.
He ordered his children to build the Inca capital where a divine golden wedge they carried with them, would penetrate the earth and the Incas believed this happened in the city of Cuzco.
Pantheon, Temples & Worship
Is a deity in the Inca pantheon, followed by Ilyap'a (Thunder God) & Mama Quilla (Moon Goddess)
Inti is a patron deity of the Inca Empire.
Although he was the second most revered deity after Viracocha, he received the greatest number of offerings.
His name was so sacred that even those granted to utter it had to do so soundlessly.
He was worshiped mostly by farmers who relied on the sun to receive good harvests.
Willaq Umu was the High Priest of the Sun (Inti) and was the 2nd most powerful person in the kingdom directly underneath the Sapa Inca (they were often brothers).
The festival of Inti Raymi (Quechua for "resurrection of the sun" or "the way/path of the sun") honors the sun-god. The festival was held in Cuzco during the Winter Solstice (around June 24th) in the Incan Empire and was attended by the four sectors of Tahuantinsuyu. Preparation for the festival began with a 3-day fast, where no fire was lit and the people refrained from sexual intercourse. The festival would then last 9 days, where the people would feast and many sacrifices were performed on the 1st day.