20662343133656 has 16 divisors (see below), whose sum is σ = 44276449572240. Its totient is φ = 8855289914400.

The previous prime is 20662343133571. The next prime is 20662343133709. The reversal of 20662343133656 is 65633134326602.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 184485206495 + ... + 184485206606.

It is an arithmetic number, because the mean of its divisors is an integer number (2767278098265).

Almost surely, 2^{20662343133656} is an apocalyptic number.

It is an amenable number.

20662343133656 is an abundant number, since it is smaller than the sum of its proper divisors (23614106438584).

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

20662343133656 is a wasteful number, since it uses less digits than its factorization.

20662343133656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 368970413114 (or 368970413110 counting only the distinct ones).

The product of its (nonzero) digits is 8398080, while the sum is 50.

The spelling of 20662343133656 in words is "twenty trillion, six hundred sixty-two billion, three hundred forty-three million, one hundred thirty-three thousand, six hundred fifty-six".