20823803460680 has 64 divisors (see below), whose sum is σ = 53335275292800. Its totient is φ = 7243062069760.

The previous prime is 20823803460667. The next prime is 20823803460689. The reversal of 20823803460680 is 8606430832802.

It is not an unprimeable number, because it can be changed into a prime (20823803460689) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1028833925 + ... + 1028854164.

It is an arithmetic number, because the mean of its divisors is an integer number (833363676450).

Almost surely, 2^{20823803460680} is an apocalyptic number.

20823803460680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20823803460680 is an abundant number, since it is smaller than the sum of its proper divisors (32511471832120).

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

20823803460680 is a wasteful number, since it uses less digits than its factorization.

20823803460680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2057688134 (or 2057688130 counting only the distinct ones).

The product of its (nonzero) digits is 2654208, while the sum is 50.

The spelling of 20823803460680 in words is "twenty trillion, eight hundred twenty-three billion, eight hundred three million, four hundred sixty thousand, six hundred eighty".