660003281442288 has 1600 divisors, whose sum is σ = 2372295163392000. Its totient is φ = 175139095961088.

The previous prime is 660003281442217. The next prime is 660003281442343. The reversal of 660003281442288 is 882244182300066.

660003281442288 is a `hidden beast` number, since 6 + 60 + 0 + 0 + 3 + 2 + 81 + 4 + 422 + 88 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 319 ways as a sum of consecutive naturals, for example, 682526660781 + ... + 682526661747.

It is an arithmetic number, because the mean of its divisors is an integer number (1482684477120).

Almost surely, 2^{660003281442288} 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 660003281442288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1186147581696000).

660003281442288 is an abundant number, since it is smaller than the sum of its proper divisors (1712291881949712).

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

660003281442288 is a wasteful number, since it uses less digits than its factorization.

660003281442288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1677 (or 1644 counting only the distinct ones).

The product of its (nonzero) digits is 7077888, while the sum is 54.

The spelling of 660003281442288 in words is "six hundred sixty trillion, three billion, two hundred eighty-one million, four hundred forty-two thousand, two hundred eighty-eight".