128590663168 has 80 divisors (see below), whose sum is σ = 283437863280. Its totient is φ = 57793331200.

The previous prime is 128590663093. The next prime is 128590663181. The reversal of 128590663168 is 861366095821.

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 7 ways as a sum of consecutive naturals, for example, 372978 + ... + 629518.

It is an arithmetic number, because the mean of its divisors is an integer number (3542973291).

Almost surely, 2^128590663168 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 128590663168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (141718931640).

128590663168 is an abundant number, since it is smaller than the sum of its proper divisors (154847200112).

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

128590663168 is an equidigital number, since it uses as much as digits as its factorization.

128590663168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256659 (or 256643 counting only the distinct ones).

The product of its (nonzero) digits is 3732480, while the sum is 55.

The spelling of 128590663168 in words is "one hundred twenty-eight billion, five hundred ninety million, six hundred sixty-three thousand, one hundred sixty-eight".