659404944800 has 144 divisors (see below), whose sum is σ = 1841434015680. Its totient is φ = 225873500160.

The previous prime is 659404944799. The next prime is 659404944811. The reversal of 659404944800 is 8449404956.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6089531 + ... + 6196869.

It is an arithmetic number, because the mean of its divisors is an integer number (12787736220).

Almost surely, 2^659404944800 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 659404944800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (920717007840).

659404944800 is an abundant number, since it is smaller than the sum of its proper divisors (1182029070880).

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

659404944800 is a wasteful number, since it uses less digits than its factorization.

659404944800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108463 (or 108450 counting only the distinct ones).

The product of its (nonzero) digits is 4976640, while the sum is 53.

The spelling of 659404944800 in words is "six hundred fifty-nine billion, four hundred four million, nine hundred forty-four thousand, eight hundred".