33213330320 has 40 divisors (see below), whose sum is σ = 80578431936. Its totient is φ = 12707708288.

The previous prime is 33213330263. The next prime is 33213330329. The reversal of 33213330320 is 2303331233.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×33213330320² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is not an unprimeable number, because it can be changed into a prime (33213330329) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9023522 + ... + 9027201.

Almost surely, 2^33213330320 is an apocalyptic number.

It is an amenable number.

33213330320 is an abundant number, since it is smaller than the sum of its proper divisors (47365101616).

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

33213330320 is a wasteful number, since it uses less digits than its factorization.

33213330320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18050759 (or 18050753 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 23.

Adding to 33213330320 its reverse (2303331233), we get a palindrome (35516661553).

The spelling of 33213330320 in words is "thirty-three billion, two hundred thirteen million, three hundred thirty thousand, three hundred twenty".