660255095808 has 792 divisors, whose sum is σ = 2524970897280. Its totient is φ = 164010147840.

The previous prime is 660255095807. The next prime is 660255095827. The reversal of 660255095808 is 808590552066.

660255095808 is a `hidden beast` number, since 6 + 6 + 0 + 2 + 5 + 50 + 9 + 580 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (792).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (660255095807) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 114247863 + ... + 114253641.

Almost surely, 2^660255095808 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 660255095808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1262485448640).

660255095808 is an abundant number, since it is smaller than the sum of its proper divisors (1864715801472).

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

660255095808 is a wasteful number, since it uses less digits than its factorization.

660255095808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5853 (or 5825 counting only the distinct ones).

The product of its (nonzero) digits is 5184000, while the sum is 54.

The spelling of 660255095808 in words is "six hundred sixty billion, two hundred fifty-five million, ninety-five thousand, eight hundred eight".