128090670066 has 48 divisors (see below), whose sum is σ = 309321136800. Its totient is φ = 38070290304.

The previous prime is 128090670017. The next prime is 128090670077. The reversal of 128090670066 is 660076090821.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon 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, 11009896 + ... + 11021523.

It is an arithmetic number, because the mean of its divisors is an integer number (6444190350).

Almost surely, 2^128090670066 is an apocalyptic number.

128090670066 is an abundant number, since it is smaller than the sum of its proper divisors (181230466734).

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

128090670066 is a wasteful number, since it uses less digits than its factorization.

128090670066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22031463 (or 22031460 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The spelling of 128090670066 in words is "one hundred twenty-eight billion, ninety million, six hundred seventy thousand, sixty-six".