The Huge Santa Paws is an EXCLUSIVE pet that was available from the Insane Christmas Egg, with a 0.5% chance of hatching. This is actually the Huge version of the Santa Paws pet and is the rarest pet you could have gotten from the Insane Christmas Egg.
The latest Pet Simulator X value list for Huge Santa Paws can be found below:
💎 777,000,000,000 (777b)
💎 1,280,000,000,000 (1.28t)
💎 1,800,000,000,000 (1.8t)
💎 Not Available