20235553303152 has 240 divisors, whose sum is σ = 58850348864384. Its totient is φ = 5983821043200.

The previous prime is 20235553303099. The next prime is 20235553303157. The reversal of 20235553303152 is 25130335553202.

It is a self number, because there is not a number n which added to its sum of digits gives 20235553303152.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20235553303157) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 272933127 + ... + 273007257.

Almost surely, 2^{20235553303152} is an apocalyptic number.

20235553303152 is a gapful number since it is divisible by the number (22) 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 20235553303152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29425174432192).

20235553303152 is an abundant number, since it is smaller than the sum of its proper divisors (38614795561232).

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

20235553303152 is a wasteful number, since it uses less digits than its factorization.

20235553303152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75300 (or 75283 counting only the distinct ones).

The product of its (nonzero) digits is 405000, while the sum is 39.

Adding to 20235553303152 its reverse (25130335553202), we get a palindrome (45365888856354).

The spelling of 20235553303152 in words is "twenty trillion, two hundred thirty-five billion, five hundred fifty-three million, three hundred three thousand, one hundred fifty-two".