It is an unprimeable number.
Almost surely, 22188066188 is an apocalyptic number.
2188066188 is a gapful number since it is divisible by the number (28) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 2188066188, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3423458304).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2188066188 is a wasteful number, since it uses less digits than its factorization.
2188066188 is an odious number, because the sum of its binary digits is odd.
The square root of 2188066188 is about 46776.7697473864. The cubic root of 2188066188 is about 1298.2355130529.
The spelling of 2188066188 in words is "two billion, one hundred eighty-eight million, sixty-six thousand, one hundred eighty-eight".