Mr. Burns has a "lucky number one penny" (an obvious parody of Scrooge's Number One Dime)
Snake and his two cousins appear as the "Jailbird Boys" (parodying the Beagle Boys)
At the end of the story, Burns attempts (and fails) to go swimming in his new money vault.
The treasure is called the "Barks Billions", obviously named after Carl Barks. In addition, other Disney comic artists' names are referenced throughout the story - the Island of Donrosa, Mount Van Horn, the Floating Key of Strobl, the Tribe of Taliaferro, and the Gottfredson Trench.
The issue's cover artwork is a direct homage to the cover of Barks' Donald Duck comic "Ghost of the Grotto".