20243520000 has 1000 divisors, whose sum is σ = 83526787872. Its totient is φ = 4838400000.

The previous prime is 20243519953. The next prime is 20243520001. The reversal of 20243520000 is 2534202.

It is a tau number, because it is divible by the number of its divisors (1000).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (20243520001) by changing a digit.

It is a polite number, since it can be written in 99 ways as a sum of consecutive naturals, for example, 285119965 + ... + 285120035.

Almost surely, 2^20243520000 is an apocalyptic number.

20243520000 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 20243520000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41763393936).

20243520000 is an abundant number, since it is smaller than the sum of its proper divisors (63283267872).

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

20243520000 is an frugal number, since it uses more digits than its factorization.

20243520000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132 (or 92 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The spelling of 20243520000 in words is "twenty billion, two hundred forty-three million, five hundred twenty thousand".