4248446666 has 4 divisors (see below), whose sum is σ = 6372670002. Its totient is φ = 2124223332.

The previous prime is 4248446647. The next prime is 4248446717. The reversal of 4248446666 is 6666448424.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2971885225 + 1276561441 = 54515^2 + 35729^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1062111665 + ... + 1062111668.

Almost surely, 2^4248446666 is an apocalyptic number.

4248446666 is a deficient number, since it is larger than the sum of its proper divisors (2124223336).

4248446666 is a wasteful number, since it uses less digits than its factorization.

4248446666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2124223335.

The product of its digits is 5308416, while the sum is 50.

The square root of 4248446666 is about 65180.1094353178. The cubic root of 4248446666 is about 1619.6085354483.

The spelling of 4248446666 in words is "four billion, two hundred forty-eight million, four hundred forty-six thousand, six hundred sixty-six".