128550358296 has 96 divisors (see below), whose sum is σ = 358197325200. Its totient is φ = 41618499840.

The previous prime is 128550358267. The next prime is 128550358297. The reversal of 128550358296 is 692853055821.

It is a happy number.

128550358296 is a `hidden beast` number, since 1 + 2 + 8 + 5 + 50 + 3 + 582 + 9 + 6 = 666.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128550358297) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1478890 + ... + 1563398.

Almost surely, 2^128550358296 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 128550358296, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (179098662600).

128550358296 is an abundant number, since it is smaller than the sum of its proper divisors (229646966904).

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

128550358296 is a wasteful number, since it uses less digits than its factorization.

128550358296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85129 (or 85122 counting only the distinct ones).

The product of its (nonzero) digits is 5184000, while the sum is 54.

The spelling of 128550358296 in words is "one hundred twenty-eight billion, five hundred fifty million, three hundred fifty-eight thousand, two hundred ninety-six".