6659859913560 has 2304 divisors, whose sum is σ = 28228859043840. Its totient is φ = 1405233930240.

The previous prime is 6659859913549. The next prime is 6659859913573. The reversal of 6659859913560 is 653199589566.

6659859913560 is a `hidden beast` number, since 6 + 6 + 5 + 9 + 8 + 59 + 9 + 1 + 3 + 560 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 575 ways as a sum of consecutive naturals, for example, 39879400597 + ... + 39879400763.

It is an arithmetic number, because the mean of its divisors is an integer number (12252108960).

Almost surely, 2^{6659859913560} is an apocalyptic number.

6659859913560 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 6659859913560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14114429521920).

6659859913560 is an abundant number, since it is smaller than the sum of its proper divisors (21568999130280).

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

6659859913560 is a wasteful number, since it uses less digits than its factorization.

6659859913560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348 (or 325 counting only the distinct ones).

The product of its (nonzero) digits is 472392000, while the sum is 72.

The spelling of 6659859913560 in words is "six trillion, six hundred fifty-nine billion, eight hundred fifty-nine million, nine hundred thirteen thousand, five hundred sixty".