128060557047700 has 72 divisors (see below), whose sum is σ = 292589108723520. Its totient is φ = 48516293548800.

The previous prime is 128060557047691. The next prime is 128060557047701. The reversal of 128060557047700 is 7740755060821.

It is a super-2 number, since 2×128060557047700² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128060557047701) 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, 535336 + ... + 16012735.

It is an arithmetic number, because the mean of its divisors is an integer number (4063737621160).

Almost surely, 2^{128060557047700} is an apocalyptic number.

128060557047700 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 128060557047700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (146294554361760).

128060557047700 is an abundant number, since it is smaller than the sum of its proper divisors (164528551675820).

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

128060557047700 is a wasteful number, since it uses less digits than its factorization.

128060557047700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16552177 (or 16552170 counting only the distinct ones).

The product of its (nonzero) digits is 3292800, while the sum is 52.

The spelling of 128060557047700 in words is "one hundred twenty-eight trillion, sixty billion, five hundred fifty-seven million, forty-seven thousand, seven hundred".