An annuity is a financial product that provides a stream of fixed payments to the annuitant, typically in retirement. The premium is the amount of money that the annuitant pays to the insurance company in exchange for the annuity. It can be a one-time lump sum or a series of payments. The size of the premium will affect the amount and frequency of the payments received. As a knowledgeable professor, I encourage you to consider your financial goals and carefully choose the premium amount that aligns with your retirement plans.