133256768065368 has 32 divisors (see below), whose sum is σ = 333143616614400. Its totient is φ = 44418696495008.

The previous prime is 133256768065361. The next prime is 133256768065427. The reversal of 133256768065368 is 863560867652331.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133256768065361) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9291996 + ... + 18784427.

It is an arithmetic number, because the mean of its divisors is an integer number (10410738019200).

Almost surely, 2^{133256768065368} is an apocalyptic number.

It is an amenable number.

133256768065368 is an abundant number, since it is smaller than the sum of its proper divisors (199886848549032).

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

133256768065368 is a wasteful number, since it uses less digits than its factorization.

133256768065368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28274191 (or 28274187 counting only the distinct ones).

The product of its (nonzero) digits is 783820800, while the sum is 69.

The spelling of 133256768065368 in words is "one hundred thirty-three trillion, two hundred fifty-six billion, seven hundred sixty-eight million, sixty-five thousand, three hundred sixty-eight".