20523300455232 has 168 divisors, whose sum is σ = 59769437861952. Its totient is φ = 6731793868800.

The previous prime is 20523300455227. The next prime is 20523300455237. The reversal of 20523300455232 is 23255400332502.

20523300455232 is a `hidden beast` number, since 2 + 0 + 52 + 330 + 0 + 45 + 5 + 232 = 666.

It is an interprime number because it is at equal distance from previous prime (20523300455227) and next prime (20523300455237).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20523300455237) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20825203 + ... + 21788429.

It is an arithmetic number, because the mean of its divisors is an integer number (355770463464).

Almost surely, 2^{20523300455232} 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 20523300455232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29884718930976).

20523300455232 is an abundant number, since it is smaller than the sum of its proper divisors (39246137406720).

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

20523300455232 is a wasteful number, since it uses less digits than its factorization.

20523300455232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 963837 (or 963824 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 36.

Adding to 20523300455232 its reverse (23255400332502), we get a palindrome (43778700787734).

The spelling of 20523300455232 in words is "twenty trillion, five hundred twenty-three billion, three hundred million, four hundred fifty-five thousand, two hundred thirty-two".