128284887666033 has 64 divisors (see below), whose sum is σ = 223149551493120. Its totient is φ = 71299699713216.

The previous prime is 128284887665911. The next prime is 128284887666071. The reversal of 128284887666033 is 330666788482821.

128284887666033 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 128284887666033 - 2¹⁰ = 128284887665009 is a prime.

It is a super-3 number, since 3×128284887666033³ (a number of 43 digits) contains 333 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (128284887661033) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 17011660 + ... + 23365922.

It is an arithmetic number, because the mean of its divisors is an integer number (3486711742080).

Almost surely, 2^{128284887666033} is an apocalyptic number.

It is an amenable number.

128284887666033 is a deficient number, since it is larger than the sum of its proper divisors (94864663827087).

128284887666033 is a wasteful number, since it uses less digits than its factorization.

128284887666033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6357203 (or 6357197 counting only the distinct ones).

The product of its (nonzero) digits is 891813888, while the sum is 72.

The spelling of 128284887666033 in words is "one hundred twenty-eight trillion, two hundred eighty-four billion, eight hundred eighty-seven million, six hundred sixty-six thousand, thirty-three".