The Standard Model of the Universe was based on 19 dimensionless constants.
It is interesting to note that the Qur’an gives 19 as a dimensioneless constant - this is one of the great mysteries of the Qur’an and a sect recently sprang up from this number 19:
Qur’an 74:30:
Pickthall: Above it are nineteen.
Yusuf Ali: Over it are Nineteen.
Shakir: Over it are nineteen.
This is thought to be in reference to the number of angels governing Hell, which is not an expanding reality, and people will be walking on their faces in Hell:
054.048 On the day when they are dragged into the Fire upon their faces (it is said unto them): Feel the touch of hell.
When Hell is filled, it will be squeezed according to one well known hadith: Narrated Anas bin Malik:
The Prophet (peace be upon him) said, "The Hell Fire will keep on saying: ‘Are there anymore (people to come)?’ Till the Lord of Power and Honor will put His Foot over it and then it will say, 'Qat! Qat! (sufficient! sufficient!) by Your Power and Honor. And its various sides will come close to each other (i.e., it will contract). "
From what l gather, the current cosmological inventory of dimensionless constants is 25, up from 19 (quote Wikipedia: “Some physicists consider it to be ad hoc and inelegant, requiring 19 numerical constants whose values are unrelated and arbitrary”) - l cannot find a reference but it was via Wikipedia or somewhere, that l read that the additional constants accrued to account for gravity (inc. hypothetical dark matter), and cosmological expansion (inc. dark energy) - both of which could be absent from Hell, hence Hell may well only require “19”.
Peace.