4466066681 has 2 divisors, whose sum is σ = 4466066682. Its totient is φ = 4466066680.

The previous prime is 4466066639. The next prime is 4466066741. The reversal of 4466066681 is 1866606644.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3921264400 + 544802281 = 62620^2 + 23341^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4466066681 is a prime.

It is a super-2 number, since 2×4466066681² = 39891503198276711522, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (4466066621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2233033340 + 2233033341.

It is an arithmetic number, because the mean of its divisors is an integer number (2233033341).

Almost surely, 2^4466066681 is an apocalyptic number.

It is an amenable number.

4466066681 is a deficient number, since it is larger than the sum of its proper divisors (1).

4466066681 is an equidigital number, since it uses as much as digits as its factorization.

4466066681 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 995328, while the sum is 47.

The square root of 4466066681 is about 66828.6366836852. The cubic root of 4466066681 is about 1646.8033218055.

The spelling of 4466066681 in words is "four billion, four hundred sixty-six million, sixty-six thousand, six hundred eighty-one".