33130140444 has 36 divisors (see below), whose sum is σ = 86633415960. Its totient is φ = 10662573600.

The previous prime is 33130140443. The next prime is 33130140497. The reversal of 33130140444 is 44404103133.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33130140443) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15865882 + ... + 15867969.

Almost surely, 2^33130140444 is an apocalyptic number.

It is an amenable number.

33130140444 is an abundant number, since it is smaller than the sum of its proper divisors (53503275516).

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

33130140444 is a wasteful number, since it uses less digits than its factorization.

33130140444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31733890 (or 31733885 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 33130140444 its reverse (44404103133), we get a palindrome (77534243577).

The spelling of 33130140444 in words is "thirty-three billion, one hundred thirty million, one hundred forty thousand, four hundred forty-four".