20033288520 has 128 divisors (see below), whose sum is σ = 68890348800. Its totient is φ = 4565385216.

The previous prime is 20033288501. The next prime is 20033288531. The reversal of 20033288520 is 2588233002.

It is a Cunningham number, because it is equal to 141539²-1.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 247696 + ... + 318464.

It is an arithmetic number, because the mean of its divisors is an integer number (538205850).

Almost surely, 2^20033288520 is an apocalyptic number.

20033288520 is a gapful number since it is divisible by the number (20) 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 20033288520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34445174400).

20033288520 is an abundant number, since it is smaller than the sum of its proper divisors (48857060280).

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

20033288520 is a wasteful number, since it uses less digits than its factorization.

20033288520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71127 (or 71123 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 33.

It can be divided in two parts, 200 and 33288520, that added together give a triangular number (33288720 = T₈₁₅₉).

The spelling of 20033288520 in words is "twenty billion, thirty-three million, two hundred eighty-eight thousand, five hundred twenty".