6666044616 has 192 divisors, whose sum is σ = 23117777280. Its totient is φ = 1684592640.

The previous prime is 6666044533. The next prime is 6666044617. The reversal of 6666044616 is 6164406666.

It is not an unprimeable number, because it can be changed into a prime (6666044617) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 188880 + ... + 221376.

It is an arithmetic number, because the mean of its divisors is an integer number (120405090).

Almost surely, 2^6666044616 is an apocalyptic number.

6666044616 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6666044616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11558888640).

6666044616 is an abundant number, since it is smaller than the sum of its proper divisors (16451732664).

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

6666044616 is a wasteful number, since it uses less digits than its factorization.

6666044616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32564 (or 32557 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 45.

The square root of 6666044616 is about 81645.8487370913. The cubic root of 6666044616 is about 1882.0135187324.

The spelling of 6666044616 in words is "six billion, six hundred sixty-six million, forty-four thousand, six hundred sixteen".