Why is PSG so rich?

Could you please elaborate on the factors that contribute to the immense wealth of Paris Saint-Germain Football Club? What specific sources of revenue have they tapped into, and how have they Leveraged their partnerships and sponsorships to amass such a significant financial position? Additionally, have they made any strategic investments or acquisitions that have further bolstered their financial standing? I'm eager to understand the underlying reasons behind PSG's remarkable financial success.