128266672 has 20 divisors (see below), whose sum is σ = 248707296. Its totient is φ = 64084160.

The previous prime is 128266669. The next prime is 128266673. The reversal of 128266672 is 276662821.

It is not an unprimeable number, because it can be changed into a prime (128266673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27897 + ... + 32167.

Almost surely, 2^128266672 is an apocalyptic number.

It is an amenable number.

128266672 is a deficient number, since it is larger than the sum of its proper divisors (120440624).

128266672 is a wasteful number, since it uses less digits than its factorization.

128266672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6156 (or 6150 counting only the distinct ones).

The product of its digits is 96768, while the sum is 40.

The square root of 128266672 is about 11325.4877157675. The cubic root of 128266672 is about 504.3181622578.

The spelling of 128266672 in words is "one hundred twenty-eight million, two hundred sixty-six thousand, six hundred seventy-two".