The population of Nigeria is greater than the combined populations of these 40 European countries:

Netherlands – Population: 17,481,130
Azerbaijan – Population: 10,233,972
Sweden – Population: 10,383,379
Portugal – Population: 10,196,709
Czech Republic – Population: 10,779,036
Greece – Population: 10,423,054
Belarus – Population: 9,349,000
Austria – Population: 8,773,686
Hungary – Population: 9,797,561
Switzerland – Population: 8,654,622
Serbia – Population: 6,963,764
Bulgaria – Population: 6,951,482
Denmark – Population: 5,866,556
Slovakia – Population: 5,467,873
Norway – Population: 5,465,630
Finland – Population: 5,543,577
Ireland – Population: 4,967,349
Croatia – Population: 4,105,493
Moldova – Population: 4,030,067
Georgia – Population: 3,989,167
Bosnia and Herzegovina – Population: 3,301,000
Armenia – Population: 2,963,243
Albania – Population: 2,845,955
Lithuania – Population: 2,722,289
Slovenia – Population: 2,102,678
North Macedonia – Population: 2,083,374
Latvia – Population: 1,908,160
Kosovo – Population: 1,810,463
Estonia – Population: 1,326,535
Cyprus – Population: 1,221,549
Montenegro – Population: 620,079
Iceland – Population: 356,991
Luxembourg – Population: 634,730
Malta – Population: 502,653
Andorra – Population: 77,281
Faroe Islands – Population: 52,110
Monaco – Population: 39,000
Liechtenstein – Population: 38,749
San Marino – Population: 34,000
Vatican City – Population: 825