128852920080 has 120 divisors (see below), whose sum is σ = 433121164632. Its totient is φ = 34329802752.

The previous prime is 128852920067. The next prime is 128852920099. The reversal of 128852920080 is 80029258821.

128852920080 is a `hidden beast` number, since 1 + 28 + 8 + 529 + 20 + 0 + 80 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 906491664 + 127946428416 = 30108^2 + 357696^2 .

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 724132 + ... + 884348.

Almost surely, 2^128852920080 is an apocalyptic number.

128852920080 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 128852920080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (216560582316).

128852920080 is an abundant number, since it is smaller than the sum of its proper divisors (304268244552).

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

128852920080 is a wasteful number, since it uses less digits than its factorization.

128852920080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161353 (or 161344 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 45.

The spelling of 128852920080 in words is "one hundred twenty-eight billion, eight hundred fifty-two million, nine hundred twenty thousand, eighty".