33330020320 has 96 divisors (see below), whose sum is σ = 81357006528. Its totient is φ = 12893626368.

The previous prime is 33330020303. The next prime is 33330020323. The reversal of 33330020320 is 2302003333.

It is a super-2 number, since 2×33330020320² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33330020323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 971784 + ... + 1005496.

It is an arithmetic number, because the mean of its divisors is an integer number (847468818).

Almost surely, 2^33330020320 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 33330020320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40678503264).

33330020320 is an abundant number, since it is smaller than the sum of its proper divisors (48026986208).

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

33330020320 is a wasteful number, since it uses less digits than its factorization.

33330020320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33932 (or 33924 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 19.

Adding to 33330020320 its reverse (2302003333), we get a palindrome (35632023653).

The spelling of 33330020320 in words is "thirty-three billion, three hundred thirty million, twenty thousand, three hundred twenty".