20330433312 has 192 divisors, whose sum is σ = 62642490624. Its totient is φ = 5653463040.

The previous prime is 20330433287. The next prime is 20330433313. The reversal of 20330433312 is 21333403302.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (20330433313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3973668 + ... + 3978780.

It is an arithmetic number, because the mean of its divisors is an integer number (326262972).

Almost surely, 2^20330433312 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 20330433312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31321245312).

20330433312 is an abundant number, since it is smaller than the sum of its proper divisors (42312057312).

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

20330433312 is a wasteful number, since it uses less digits than its factorization.

20330433312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5291 (or 5283 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 24.

Adding to 20330433312 its reverse (21333403302), we get a palindrome (41663836614).

The spelling of 20330433312 in words is "twenty billion, three hundred thirty million, four hundred thirty-three thousand, three hundred twelve".