128066286256340 has 24 divisors (see below), whose sum is σ = 269179970389512. Its totient is φ = 51180653692800.

The previous prime is 128066286256331. The next prime is 128066286256357. The reversal of 128066286256340 is 43652682660821.

It can be written as a sum of positive squares in 4 ways, for example, as 12815283064336 + 115251003192004 = 3579844^2 + 10735502^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 128066286256340.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2866277711 + ... + 2866322390.

It is an arithmetic number, because the mean of its divisors is an integer number (11215832099563).

Almost surely, 2^{128066286256340} is an apocalyptic number.

128066286256340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

128066286256340 is an abundant number, since it is smaller than the sum of its proper divisors (141113684133172).

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

128066286256340 is a wasteful number, since it uses less digits than its factorization.

128066286256340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5732601227 (or 5732601225 counting only the distinct ones).

The product of its (nonzero) digits is 39813120, while the sum is 59.

The spelling of 128066286256340 in words is "one hundred twenty-eight trillion, sixty-six billion, two hundred eighty-six million, two hundred fifty-six thousand, three hundred forty".