659623912320 has 256 divisors, whose sum is σ = 2177371054080. Its totient is φ = 169676881920.

The previous prime is 659623912303. The next prime is 659623912331. The reversal of 659623912320 is 23219326956.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 659623912320.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18612057 + ... + 18647463.

It is an arithmetic number, because the mean of its divisors is an integer number (8505355680).

Almost surely, 2^659623912320 is an apocalyptic number.

659623912320 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 659623912320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1088685527040).

659623912320 is an abundant number, since it is smaller than the sum of its proper divisors (1517747141760).

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

659623912320 is a wasteful number, since it uses less digits than its factorization.

659623912320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35773 (or 35761 counting only the distinct ones).

The product of its (nonzero) digits is 1049760, while the sum is 48.

The spelling of 659623912320 in words is "six hundred fifty-nine billion, six hundred twenty-three million, nine hundred twelve thousand, three hundred twenty".