6668845490448 has 200 divisors, whose sum is σ = 19738909986048. Its totient is φ = 2172708776448.

The previous prime is 6668845490431. The next prime is 6668845490491. The reversal of 6668845490448 is 8440945488666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 45183940 + ... + 45331292.

Almost surely, 2^{6668845490448} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6668845490448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9869454993024).

6668845490448 is an abundant number, since it is smaller than the sum of its proper divisors (13070064495600).

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

6668845490448 is a wasteful number, since it uses less digits than its factorization.

6668845490448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148163 (or 148148 counting only the distinct ones).

The product of its (nonzero) digits is 1274019840, while the sum is 72.

The spelling of 6668845490448 in words is "six trillion, six hundred sixty-eight billion, eight hundred forty-five million, four hundred ninety thousand, four hundred forty-eight".