660230258688 has 1800 divisors, whose sum is σ = 2733623411904. Its totient is φ = 156067430400.

The previous prime is 660230258627. The next prime is 660230258689. The reversal of 660230258688 is 886852032066.

660230258688 is a `hidden beast` number, since 6 + 602 + 3 + 0 + 25 + 8 + 6 + 8 + 8 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (660230258689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 9299017693 + ... + 9299017763.

Almost surely, 2^660230258688 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 660230258688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1366811705952).

660230258688 is an abundant number, since it is smaller than the sum of its proper divisors (2073393153216).

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

660230258688 is a wasteful number, since it uses less digits than its factorization.

660230258688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149 (or 107 counting only the distinct ones).

The product of its (nonzero) digits is 6635520, while the sum is 54.

The spelling of 660230258688 in words is "six hundred sixty billion, two hundred thirty million, two hundred fifty-eight thousand, six hundred eighty-eight".