20903696800 has 144 divisors (see below), whose sum is σ = 60203146752. Its totient is φ = 6935731200.

The previous prime is 20903696761. The next prime is 20903696819. The reversal of 20903696800 is 869630902.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 113394 + ... + 233806.

It is an arithmetic number, because the mean of its divisors is an integer number (418077408).

Almost surely, 2^20903696800 is an apocalyptic number.

20903696800 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 20903696800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30101573376).

20903696800 is an abundant number, since it is smaller than the sum of its proper divisors (39299449952).

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

20903696800 is a wasteful number, since it uses less digits than its factorization.

20903696800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120471 (or 120458 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 43.

The spelling of 20903696800 in words is "twenty billion, nine hundred three million, six hundred ninety-six thousand, eight hundred".