133231685656528 has 40 divisors (see below), whose sum is σ = 262463058043136. Its totient is φ = 65504797459200.

The previous prime is 133231685656523. The next prime is 133231685656709. The reversal of 133231685656528 is 825656586132331.

It is a self number, because there is not a number n which added to its sum of digits gives 133231685656528.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133231685656523) 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, 171921888 + ... + 172695103.

Almost surely, 2^{133231685656528} is an apocalyptic number.

It is an amenable number.

133231685656528 is a deficient number, since it is larger than the sum of its proper divisors (129231372386608).

133231685656528 is a wasteful number, since it uses less digits than its factorization.

133231685656528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344617403 (or 344617397 counting only the distinct ones).

The product of its digits is 186624000, while the sum is 64.

The spelling of 133231685656528 in words is "one hundred thirty-three trillion, two hundred thirty-one billion, six hundred eighty-five million, six hundred fifty-six thousand, five hundred twenty-eight".