21630223000500 has 384 divisors, whose sum is σ = 66541692672000. Its totient is φ = 5444793216000.

The previous prime is 21630223000493. The next prime is 21630223000549. The reversal of 21630223000500 is 500032203612.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 12731148651 + ... + 12731150349.

It is an arithmetic number, because the mean of its divisors is an integer number (173285658000).

Almost surely, 2^{21630223000500} is an apocalyptic number.

21630223000500 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 21630223000500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33270846336000).

21630223000500 is an abundant number, since it is smaller than the sum of its proper divisors (44911469671500).

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

21630223000500 is a wasteful number, since it uses less digits than its factorization.

21630223000500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3088 (or 3076 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 24.

The spelling of 21630223000500 in words is "twenty-one trillion, six hundred thirty billion, two hundred twenty-three million, five hundred", and thus it is an aban number.