20722884206968 has 16 divisors (see below), whose sum is σ = 38865327632280. Its totient is φ = 10358796838368.

The previous prime is 20722884206963. The next prime is 20722884206993. The reversal of 20722884206968 is 86960248822702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20722884206963) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 330624846 + ... + 330687517.

Almost surely, 2^{20722884206968} is an apocalyptic number.

It is an amenable number.

20722884206968 is a deficient number, since it is larger than the sum of its proper divisors (18142443425312).

20722884206968 is a wasteful number, since it uses less digits than its factorization.

20722884206968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 661316286 (or 661316282 counting only the distinct ones).

The product of its (nonzero) digits is 74317824, while the sum is 64.

The spelling of 20722884206968 in words is "twenty trillion, seven hundred twenty-two billion, eight hundred eighty-four million, two hundred six thousand, nine hundred sixty-eight".