133681586128 has 40 divisors (see below), whose sum is σ = 265483820448. Its totient is φ = 65174938752.

The previous prime is 133681586123. The next prime is 133681586141. The reversal of 133681586128 is 821685186331.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133681586123) by changing a digit.

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, 238350 + ... + 569362.

Almost surely, 2^133681586128 is an apocalyptic number.

It is an amenable number.

133681586128 is a deficient number, since it is larger than the sum of its proper divisors (131802234320).

133681586128 is a wasteful number, since it uses less digits than its factorization.

133681586128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331651 (or 331645 counting only the distinct ones).

The product of its digits is 1658880, while the sum is 52.

The spelling of 133681586128 in words is "one hundred thirty-three billion, six hundred eighty-one million, five hundred eighty-six thousand, one hundred twenty-eight".