128164260728184 has 32 divisors (see below), whose sum is σ = 320411379888000. Its totient is φ = 42721323167072.

The previous prime is 128164260728173. The next prime is 128164260728249. The reversal of 128164260728184 is 481827062461821.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5137087 + ... + 16814225.

It is an arithmetic number, because the mean of its divisors is an integer number (10012855621500).

Almost surely, 2^{128164260728184} is an apocalyptic number.

It is an amenable number.

128164260728184 is an abundant number, since it is smaller than the sum of its proper divisors (192247119159816).

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

128164260728184 is a wasteful number, since it uses less digits than its factorization.

128164260728184 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12134467 (or 12134463 counting only the distinct ones).

The product of its (nonzero) digits is 16515072, while the sum is 60.

The spelling of 128164260728184 in words is "one hundred twenty-eight trillion, one hundred sixty-four billion, two hundred sixty million, seven hundred twenty-eight thousand, one hundred eighty-four".