6666247446 has 16 divisors (see below), whose sum is σ = 13457098944. Its totient is φ = 2201315144.

The previous prime is 6666247403. The next prime is 6666247453. The reversal of 6666247446 is 6447426666.

It is a super-2 number, since 2×6666247446² = 88877710022603045832, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5191140 + ... + 5192423.

It is an arithmetic number, because the mean of its divisors is an integer number (841068684).

Almost surely, 2^6666247446 is an apocalyptic number.

6666247446 is an abundant number, since it is smaller than the sum of its proper divisors (6790851498).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6666247446 is a wasteful number, since it uses less digits than its factorization.

6666247446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10383675.

The product of its digits is 6967296, while the sum is 51.

The square root of 6666247446 is about 81647.0908606057. The cubic root of 6666247446 is about 1882.0326067600.

The spelling of 6666247446 in words is "six billion, six hundred sixty-six million, two hundred forty-seven thousand, four hundred forty-six".