How Do you Pronounce fifteen billion million thousand seven hundred twenty in english ?

fifteen billion million thousand seven hundred twenty Pronunciation in english(IPA) :

ˈfɪftiːn ˈbɪljən ˈmɪljən ˈθaʊz(ə)nd ˈsɛv(ə)n ˈhʌndrəd ˈtwɛnti