128715584166 has 48 divisors (see below), whose sum is σ = 311459947344. Its totient is φ = 39604793184.

The previous prime is 128715584159. The next prime is 128715584203. The reversal of 128715584166 is 661485517821.

128715584166 is a `hidden beast` number, since 1 + 2 + 8 + 71 + 558 + 4 + 16 + 6 = 666.

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 23 ways as a sum of consecutive naturals, for example, 10180101 + ... + 10192736.

It is an arithmetic number, because the mean of its divisors is an integer number (6488748903).

Almost surely, 2^128715584166 is an apocalyptic number.

128715584166 is an abundant number, since it is smaller than the sum of its proper divisors (182744363178).

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

128715584166 is a wasteful number, since it uses less digits than its factorization.

128715584166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20372867 (or 20372855 counting only the distinct ones).

The product of its digits is 3225600, while the sum is 54.

The spelling of 128715584166 in words is "one hundred twenty-eight billion, seven hundred fifteen million, five hundred eighty-four thousand, one hundred sixty-six".