20683680000 has 360 divisors, whose sum is σ = 70533746976. Its totient is φ = 5376000000.

The previous prime is 20683679987. The next prime is 20683680001. The reversal of 20683680000 is 8638602.

It is not an unprimeable number, because it can be changed into a prime (20683680001) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 19679475 + ... + 19680525.

Almost surely, 2^20683680000 is an apocalyptic number.

20683680000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20683680000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35266873488).

20683680000 is an abundant number, since it is smaller than the sum of its proper divisors (49850066976).

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

20683680000 is an equidigital number, since it uses as much as digits as its factorization.

20683680000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1131 (or 1102 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 33.

The spelling of 20683680000 in words is "twenty billion, six hundred eighty-three million, six hundred eighty thousand".