33423521152 has 128 divisors (see below), whose sum is σ = 77193518400. Its totient is φ = 14119526400.

The previous prime is 33423521123. The next prime is 33423521161. The reversal of 33423521152 is 25112532433.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-2 number, since 2×33423521152² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24342738 + ... + 24344110.

Almost surely, 2^33423521152 is an apocalyptic number.

33423521152 is a gapful number since it is divisible by the number (32) 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 33423521152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38596759200).

33423521152 is an abundant number, since it is smaller than the sum of its proper divisors (43769997248).

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

33423521152 is a wasteful number, since it uses less digits than its factorization.

33423521152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1764 (or 1752 counting only the distinct ones).

The product of its digits is 21600, while the sum is 31.

The spelling of 33423521152 in words is "thirty-three billion, four hundred twenty-three million, five hundred twenty-one thousand, one hundred fifty-two".