What age did Hanuman die at?

There is no age for Hanumanji. He is immortal, he can never grow old only if he wants to.

HANUMAN IS NOT ANY PERSON OR ANIMAL BUT IS AIR (OUR BREATHING CALL HANUMAN ( SON OF WIND ). THE MOST IMPORTANT FOR LIFE IS BREATHING THAT IS WHY HANUMAN IS CLOSEST FREIND OF RAMA(SOUL)