20152443324 has 144 divisors (see below), whose sum is σ = 53847158400. Its totient is φ = 5829217152.

The previous prime is 20152443319. The next prime is 20152443397. The reversal of 20152443324 is 42334425102.

It is a super-2 number, since 2×20152443324² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20152443291 and 20152443300.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4866847 + ... + 4870985.

It is an arithmetic number, because the mean of its divisors is an integer number (373938600).

Almost surely, 2^20152443324 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 20152443324, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26923579200).

20152443324 is an abundant number, since it is smaller than the sum of its proper divisors (33694715076).

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

20152443324 is a wasteful number, since it uses less digits than its factorization.

20152443324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4264 (or 4239 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 30.

Adding to 20152443324 its reverse (42334425102), we get a palindrome (62486868426).

The spelling of 20152443324 in words is "twenty billion, one hundred fifty-two million, four hundred forty-three thousand, three hundred twenty-four".