659716807680 has 1584 divisors, whose sum is σ = 2905755147360. Its totient is φ = 141501136896.

The previous prime is 659716807637. The next prime is 659716807703. The reversal of 659716807680 is 86708617956.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 1957616472 + ... + 1957616808.

Almost surely, 2^659716807680 is an apocalyptic number.

659716807680 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 659716807680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1452877573680).

659716807680 is an abundant number, since it is smaller than the sum of its proper divisors (2246038339680).

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

659716807680 is a wasteful number, since it uses less digits than its factorization.

659716807680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 419 (or 371 counting only the distinct ones).

The product of its (nonzero) digits is 30481920, while the sum is 63.

The spelling of 659716807680 in words is "six hundred fifty-nine billion, seven hundred sixteen million, eight hundred seven thousand, six hundred eighty".