128450560000 has 345 divisors, whose sum is σ = 373435617819. Its totient is φ = 44040192000.

The previous prime is 128450559997. The next prime is 128450560001. The reversal of 128450560000 is 65054821.

The square root of 128450560000 is 358400.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 2 ways, for example, as 10070523904 + 118380036096 = 100352^2 + 344064^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (128450560001) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 18350079997 + ... + 18350080003.

Almost surely, 2^128450560000 is an apocalyptic number.

128450560000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

128450560000 is the 358400-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 128450560000

128450560000 is an abundant number, since it is smaller than the sum of its proper divisors (244985057819).

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

128450560000 is an frugal number, since it uses more digits than its factorization.

128450560000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78 (or 14 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 31.

The spelling of 128450560000 in words is "one hundred twenty-eight billion, four hundred fifty million, five hundred sixty thousand".