The phrase "an innumerable number of" is correct and usable in written English.
It can be used when emphasizing a vast quantity that is too large to count or specify.
Example: "There are an innumerable number of stars in the universe, far beyond what we can see with the naked eye."
Alternatives: "countless" or "a myriad of".
"There's an innumerable number of people who have suffered violence or injustice who might write to the pope for a word of comfort, and it's clear that he can't answer all of them," said Alberto Melloni, a Vatican historian and the director of the John XXIII Foundation for Religious Studies in Bologna, a liberal Catholic research institute.
"Everyone had to deal with it, there are an innumerable number of witnesses".
Throughout the game, Joel has killed an innumerable number of zombies.
The White House didn't explain what happened to the tree, and with an innumerable number of possible explanations out there maybe someone stole it, or it died, or Trump chopped it down in a fit of blind fury the good people of the internet launched an informal investigation into its whereabouts.
Plants are exposed to an innumerable number of pathogenic organisms on a daily basis.
If it does, then an innumerable number of patients with various common diseases will join the queue for such a treatment.
Furthermore, according to the Jain karmic theory, each and every soul, including self, has reincarnated as an animal, plant or microorganism innumerable number of times besides re-incarnated as humans.
Use of instrument questionnaire items is essential for measurement of outcome of interest in innumerable numbers of clinical trials.
Deep sRNA sequencing has only been performed for the former two species, whereas high-throughput sRNA sequencing data are available for innumerable numbers of glycophytes.
There seemed to be an unlimited number of homeless people and innumerable slums.
has been the subject of an innumerable amount of papers and of many classical mathematicians.
