33130944020 has 24 divisors (see below), whose sum is σ = 73667629224. Its totient is φ = 12472825856.

The previous prime is 33130944019. The next prime is 33130944029. The reversal of 33130944020 is 2044903133.

It can be written as a sum of positive squares in 4 ways, for example, as 267780496 + 32863163524 = 16364^2 + 181282^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33130944029) 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, 48721637 + ... + 48722316.

It is an arithmetic number, because the mean of its divisors is an integer number (3069484551).

Almost surely, 2^33130944020 is an apocalyptic number.

It is an amenable number.

33130944020 is an abundant number, since it is smaller than the sum of its proper divisors (40536685204).

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

33130944020 is a wasteful number, since it uses less digits than its factorization.

33130944020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97443979 (or 97443977 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 29.

The spelling of 33130944020 in words is "thirty-three billion, one hundred thirty million, nine hundred forty-four thousand, twenty".