20224453144 has 64 divisors (see below), whose sum is σ = 45400320000. Its totient is φ = 8262753408.

The previous prime is 20224453141. The next prime is 20224453147. The reversal of 20224453144 is 44135442202.

It is an interprime number because it is at equal distance from previous prime (20224453141) and next prime (20224453147).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20224453141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49477 + ... + 207115.

It is an arithmetic number, because the mean of its divisors is an integer number (709380000).

Almost surely, 2^20224453144 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20224453144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22700160000).

20224453144 is an abundant number, since it is smaller than the sum of its proper divisors (25175866856).

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

20224453144 is a wasteful number, since it uses less digits than its factorization.

20224453144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157760 (or 157756 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 31.

Adding to 20224453144 its reverse (44135442202), we get a palindrome (64359895346).

The spelling of 20224453144 in words is "twenty billion, two hundred twenty-four million, four hundred fifty-three thousand, one hundred forty-four".