33130944018 has 12 divisors (see below), whose sum is σ = 71783712078. Its totient is φ = 11043648000.

The previous prime is 33130943981. The next prime is 33130944019. The reversal of 33130944018 is 81044903133.

33130944018 is a `hidden beast` number, since 33 + 130 + 94 + 401 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 19335736809 + 13795207209 = 139053^2 + 117453^2 .

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (33130944019) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 920303983 + ... + 920304018.

Almost surely, 2^33130944018 is an apocalyptic number.

33130944018 is an abundant number, since it is smaller than the sum of its proper divisors (38652768060).

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

33130944018 is a wasteful number, since it uses less digits than its factorization.

33130944018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1840608009 (or 1840608006 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The spelling of 33130944018 in words is "thirty-three billion, one hundred thirty million, nine hundred forty-four thousand, eighteen".