128646126112 has 48 divisors (see below), whose sum is σ = 289514675520. Its totient is φ = 55122455808.

The previous prime is 128646126083. The next prime is 128646126143. The reversal of 128646126112 is 211621646821.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1052439 + ... + 1168297.

It is an arithmetic number, because the mean of its divisors is an integer number (6031555740).

Almost surely, 2^128646126112 is an apocalyptic number.

It is an amenable number.

128646126112 is an abundant number, since it is smaller than the sum of its proper divisors (160868549408).

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

128646126112 is a wasteful number, since it uses less digits than its factorization.

128646126112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120833 (or 120825 counting only the distinct ones).

The product of its digits is 55296, while the sum is 40.

The spelling of 128646126112 in words is "one hundred twenty-eight billion, six hundred forty-six million, one hundred twenty-six thousand, one hundred twelve".