128160000000 has 576 divisors, whose sum is σ = 467884544400. Its totient is φ = 33792000000.

The previous prime is 128159999987. The next prime is 128160000029. The reversal of 128160000000 is 61821.

It can be written as a sum of positive squares in 8 ways, for example, as 126235247616 + 1924752384 = 355296^2 + 43872^2 .

It is a tau number, because it is divible by the number of its divisors (576).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1439999956 + ... + 1440000044.

Almost surely, 2^128160000000 is an apocalyptic number.

128160000000 is a gapful number since it is divisible by the number (10) 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 128160000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (233942272200).

128160000000 is an abundant number, since it is smaller than the sum of its proper divisors (339724544400).

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

128160000000 is an frugal number, since it uses more digits than its factorization.

128160000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152 (or 99 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 128160000000 its reverse (61821), we get a palindrome (128160061821).

The spelling of 128160000000 in words is "one hundred twenty-eight billion, one hundred sixty million", and thus it is an aban number.