6686674560 has 192 divisors, whose sum is σ = 24305580000. Its totient is φ = 1689237504.

The previous prime is 6686674559. The next prime is 6686674597. The reversal of 6686674560 is 654766866.

6686674560 is a `hidden beast` number, since 6 + 6 + 8 + 6 + 6 + 74 + 560 = 666.

It is a tau number, because it is divible by the number of its divisors (192).

It is a junction number, because it is equal to n+sod(n) for n = 6686674497 and 6686674506.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 78891 + ... + 139989.

Almost surely, 2^6686674560 is an apocalyptic number.

6686674560 is a gapful number since it is divisible by the number (60) 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 6686674560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12152790000).

6686674560 is an abundant number, since it is smaller than the sum of its proper divisors (17618905440).

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

6686674560 is a wasteful number, since it uses less digits than its factorization.

6686674560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61143 (or 61128 counting only the distinct ones).

The product of its (nonzero) digits is 8709120, while the sum is 54.

The square root of 6686674560 is about 81772.0891258136. The cubic root of 6686674560 is about 1883.9529921872.

The spelling of 6686674560 in words is "six billion, six hundred eighty-six million, six hundred seventy-four thousand, five hundred sixty".