4243352666 has 12 divisors (see below), whose sum is σ = 7404217578. Its totient is φ = 1818579672.

The previous prime is 4243352651. The next prime is 4243352671. The reversal of 4243352666 is 6662533424.

It can be written as a sum of positive squares in only one way, i.e., 4189843441 + 53509225 = 64729^2 + 7315^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 21649661 + ... + 21649856.

Almost surely, 2^4243352666 is an apocalyptic number.

4243352666 is a deficient number, since it is larger than the sum of its proper divisors (3160864912).

4243352666 is a wasteful number, since it uses less digits than its factorization.

4243352666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43299533 (or 43299526 counting only the distinct ones).

The product of its digits is 622080, while the sum is 41.

The square root of 4243352666 is about 65141.0213767024. The cubic root of 4243352666 is about 1618.9609587249.

The spelling of 4243352666 in words is "four billion, two hundred forty-three million, three hundred fifty-two thousand, six hundred sixty-six".