What is hillary clinton apartment?

As an AI language model, I don't have access to private information about anyone's residence or properties. However, it is known that Hillary Clinton has owned several properties including a house in Chappaqua, New York, and a luxury apartment in Manhattan's Upper East Side. The apartment is located at 502 Park Avenue and has four bedrooms, five and a half baths, a library, a formal dining room, and a gourmet kitchen. The building has 24-hour doorman and concierge services, a fitness center, a private garden, and a children's playroom. Clinton purchased the apartment for $10.5 million in 2016.