6566675696568 has 448 divisors, whose sum is σ = 20058758909280. Its totient is φ = 2002475520000.

The previous prime is 6566675696533. The next prime is 6566675696591. The reversal of 6566675696568 is 8656965766656.

It is a Harshad number since it is a multiple of its sum of digits (81).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 4433946388 + ... + 4433947868.

Almost surely, 2^{6566675696568} 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 6566675696568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10029379454640).

6566675696568 is an abundant number, since it is smaller than the sum of its proper divisors (13492083212712).

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

6566675696568 is a wasteful number, since it uses less digits than its factorization.

6566675696568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2002 (or 1983 counting only the distinct ones).

The product of its digits is 17635968000, while the sum is 81.

The spelling of 6566675696568 in words is "six trillion, five hundred sixty-six billion, six hundred seventy-five million, six hundred ninety-six thousand, five hundred sixty-eight".