128366893156 has 12 divisors (see below), whose sum is σ = 228880592892. Its totient is φ = 62972438048.

The previous prime is 128366893133. The next prime is 128366893159. The reversal of 128366893156 is 651398663821.

It can be written as a sum of positive squares in 2 ways, for example, as 30888062500 + 97478830656 = 175750^2 + 312216^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 128366893156.

It is not an unprimeable number, because it can be changed into a prime (128366893159) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 302751895 + ... + 302752318.

It is an arithmetic number, because the mean of its divisors is an integer number (19073382741).

Almost surely, 2^128366893156 is an apocalyptic number.

It is an amenable number.

128366893156 is a deficient number, since it is larger than the sum of its proper divisors (100513699736).

128366893156 is a wasteful number, since it uses less digits than its factorization.

128366893156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 605504270 (or 605504268 counting only the distinct ones).

The product of its digits is 11197440, while the sum is 58.

The spelling of 128366893156 in words is "one hundred twenty-eight billion, three hundred sixty-six million, eight hundred ninety-three thousand, one hundred fifty-six".