4066247818 has 16 divisors (see below), whose sum is σ = 6312547080. Its totient is φ = 1962128896.

The previous prime is 4066247813. The next prime is 4066247831. The reversal of 4066247818 is 8187426604.

It can be written as a sum of positive squares in 4 ways, for example, as 2775498489 + 1290749329 = 52683^2 + 35927^2 .

It is a super-2 number, since 2×4066247818² = 33068742634779522248, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (4066247813) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 124146 + ... + 153442.

Almost surely, 2^4066247818 is an apocalyptic number.

4066247818 is a deficient number, since it is larger than the sum of its proper divisors (2246299262).

4066247818 is a wasteful number, since it uses less digits than its factorization.

4066247818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31721.

The product of its (nonzero) digits is 516096, while the sum is 46.

The square root of 4066247818 is about 63767.1374455526. The cubic root of 4066247818 is about 1596.1166000976.

The spelling of 4066247818 in words is "four billion, sixty-six million, two hundred forty-seven thousand, eight hundred eighteen".