33230812880 has 90 divisors (see below), whose sum is σ = 78482212866. Its totient is φ = 13085580288.

The previous prime is 33230812877. The next prime is 33230812889. The reversal of 33230812880 is 8821803233.

It can be written as a sum of positive squares in 9 ways, for example, as 2453022784 + 30777790096 = 49528^2 + 175436^2 .

It is a super-2 number, since 2×33230812880² (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 (33230812889) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 145112606 + ... + 145112834.

Almost surely, 2^33230812880 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 33230812880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39241106433).

33230812880 is an abundant number, since it is smaller than the sum of its proper divisors (45251399986).

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

33230812880 is an frugal number, since it uses more digits than its factorization.

33230812880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 649 (or 325 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 38.

The spelling of 33230812880 in words is "thirty-three billion, two hundred thirty million, eight hundred twelve thousand, eight hundred eighty".