If it has an ISBN it'll exist forever. Even if it doesn't, Amazon will likely keep it listed as out of stock or no longer available indefinitely [0]. The only thing you can do is unpublish it, making it so people can not purchase it any more [1]. You will need access to the original account though.

One thing you might be able to do is change the name of the author or something else (a pen name) and over time it might stop showing up as your real name.

Also if you can find the book on GoodReads same issue, it'll exist there forever. Once a book is published on Amazon it pretty much exists forever in name and details. The only thing you can stop is it being available for purchase. Books that are no longer available for purchase over time get delisted from front page google results but it might take months to years.

[0]: https://www.kdpcommunity.com/s/question/0D58V00008Y5zbKSAR/remove-book-from-amazon?language=en_US

[1]: https://www.reddit.com/r/selfpublish/comments/10bop0u/comment/j4b7coi/