128581011196 has 48 divisors (see below), whose sum is σ = 248773045248. Its totient is φ = 57664353600.

The previous prime is 128581011137. The next prime is 128581011197. The reversal of 128581011196 is 691110185821.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128581011197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1175826 + ... + 1280518.

It is an arithmetic number, because the mean of its divisors is an integer number (5182771776).

Almost surely, 2^128581011196 is an apocalyptic number.

It is an amenable number.

128581011196 is a deficient number, since it is larger than the sum of its proper divisors (120192034052).

128581011196 is a wasteful number, since it uses less digits than its factorization.

128581011196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105082 (or 105080 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 43.

The spelling of 128581011196 in words is "one hundred twenty-eight billion, five hundred eighty-one million, eleven thousand, one hundred ninety-six".