128885356116 has 288 divisors, whose sum is σ = 380414361600. Its totient is φ = 37821064320.

The previous prime is 128885356097. The next prime is 128885356153. The reversal of 128885356116 is 611653588821.

128885356116 is a `hidden beast` number, since 1 + 28 + 8 + 8 + 53 + 561 + 1 + 6 = 666.

It is a super-2 number, since 2×128885356116² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 44765965 + ... + 44768843.

It is an arithmetic number, because the mean of its divisors is an integer number (1320883200).

Almost surely, 2^128885356116 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 128885356116, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (190207180800).

128885356116 is an abundant number, since it is smaller than the sum of its proper divisors (251529005484).

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

128885356116 is a wasteful number, since it uses less digits than its factorization.

128885356116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3041 (or 3027 counting only the distinct ones).

The product of its digits is 2764800, while the sum is 54.

The spelling of 128885356116 in words is "one hundred twenty-eight billion, eight hundred eighty-five million, three hundred fifty-six thousand, one hundred sixteen".