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The vecemegillion is equal to \(10^{3\times10^{3\times10^7} + 3}\)[1]. The term was coined by YouTuber Douglas Shamlin Jr.

YouTuber Metsuka The Cute Princess 2007 calls this number quectemegillion for this number.[2]

Approximations[]

Notation Approximation
Scientific notation \(1 \times 10^{3\times10^{30,000,000} + 3}\) (exact)
Arrow notation \(10 \uparrow (3\times10\uparrow{30,000,000} + 3)\) (exact)

Sources[]