133009305644656 has 20 divisors (see below), whose sum is σ = 294520605356272. Its totient is φ = 57003988133376.

The previous prime is 133009305644623. The next prime is 133009305644669. The reversal of 133009305644656 is 656446503900331.

It is a junction number, because it is equal to n+sod(n) for n = 133009305644597 and 133009305644606.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 593791542945 + ... + 593791543168.

Almost surely, 2^{133009305644656} is an apocalyptic number.

133009305644656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

133009305644656 is an abundant number, since it is smaller than the sum of its proper divisors (161511299711616).

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

133009305644656 is a wasteful number, since it uses less digits than its factorization.

133009305644656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1187583086128 (or 1187583086122 counting only the distinct ones).

The product of its (nonzero) digits is 20995200, while the sum is 55.

The spelling of 133009305644656 in words is "one hundred thirty-three trillion, nine billion, three hundred five million, six hundred forty-four thousand, six hundred fifty-six".