128116298124 has 72 divisors (see below), whose sum is σ = 333686681328. Its totient is φ = 41415753600.

The previous prime is 128116298047. The next prime is 128116298129. The reversal of 128116298124 is 421892611821.

128116298124 is a `hidden beast` number, since 1 + 2 + 8 + 1 + 1 + 629 + 8 + 12 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 128116298124.

It is not an unprimeable number, because it can be changed into a prime (128116298129) 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, 252274 + ... + 565574.

Almost surely, 2^128116298124 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 128116298124, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (166843340664).

128116298124 is an abundant number, since it is smaller than the sum of its proper divisors (205570383204).

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

128116298124 is a wasteful number, since it uses less digits than its factorization.

128116298124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313655 (or 313650 counting only the distinct ones).

The product of its digits is 110592, while the sum is 45.

The spelling of 128116298124 in words is "one hundred twenty-eight billion, one hundred sixteen million, two hundred ninety-eight thousand, one hundred twenty-four".