20716748800 has 384 divisors, whose sum is σ = 59484808800. Its totient is φ = 7136870400.

The previous prime is 20716748791. The next prime is 20716748827. The reversal of 20716748800 is 884761702.

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, 1090355191 + ... + 1090355209.

Almost surely, 2^20716748800 is an apocalyptic number.

20716748800 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 20716748800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29742404400).

20716748800 is an abundant number, since it is smaller than the sum of its proper divisors (38768060000).

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

20716748800 is an frugal number, since it uses more digits than its factorization.

20716748800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92 (or 37 counting only the distinct ones).

The product of its (nonzero) digits is 150528, while the sum is 43.

The spelling of 20716748800 in words is "twenty billion, seven hundred sixteen million, seven hundred forty-eight thousand, eight hundred".