20688488822 has 16 divisors (see below), whose sum is σ = 32432078592. Its totient is φ = 9879187560.

The previous prime is 20688488819. The next prime is 20688488833. The reversal of 20688488822 is 22888488602.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 317804 + ... + 377327.

It is an arithmetic number, because the mean of its divisors is an integer number (2027004912).

Almost surely, 2^20688488822 is an apocalyptic number.

20688488822 is a deficient number, since it is larger than the sum of its proper divisors (11743589770).

20688488822 is a wasteful number, since it uses less digits than its factorization.

20688488822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 695803.

The product of its (nonzero) digits is 6291456, while the sum is 56.

The spelling of 20688488822 in words is "twenty billion, six hundred eighty-eight million, four hundred eighty-eight thousand, eight hundred twenty-two".