Apéry's constant
Avogadro constant

Beast Number (666)

Catalan's constant
century
Chaitin's constant
Champernowne's number

e
Eddington number
eight
eleven
Euler-Mascheroni constant

Feigenbaum's constant
five
four

golden ratio
googol
Graham's number
gross

hexa-
hundred

i (imaginary unit number)

Kaprekar constant
Khintchine's constant

large numbers
Leibniz harmonic triangle

million
myriad

nine
numbers, 1 to 20

octa-
Omega
one

penta-
phi
pi
plastic number

seven
seventeen
sexagesimal
six
Skewes' number
square root of 2

ten
tetraktys
thirteen
thousand
three
Thue-Morse constant
trillion
twelve
twenty
two

vigesimal

zero