20252144000 has 256 divisors, whose sum is σ = 57329026560. Its totient is φ = 7042816000.

The previous prime is 20252143993. The next prime is 20252144057. The reversal of 20252144000 is 44125202.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4045499 + ... + 4050501.

It is an arithmetic number, because the mean of its divisors is an integer number (223941510).

Almost surely, 2^20252144000 is an apocalyptic number.

20252144000 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 20252144000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28664513280).

20252144000 is an abundant number, since it is smaller than the sum of its proper divisors (37076882560).

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

20252144000 is a wasteful number, since it uses less digits than its factorization.

20252144000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5066 (or 5044 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

Adding to 20252144000 its reverse (44125202), we get a palindrome (20296269202).

The spelling of 20252144000 in words is "twenty billion, two hundred fifty-two million, one hundred forty-four thousand".