33557045331 has 16 divisors (see below), whose sum is σ = 47384193024. Its totient is φ = 21051160704.

The previous prime is 33557045303. The next prime is 33557045363. The reversal of 33557045331 is 13354075533.

It is not a de Polignac number, because 33557045331 - 2⁶ = 33557045267 is a prime.

It is a super-2 number, since 2×33557045331² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 33557045331.

It is not an unprimeable number, because it can be changed into a prime (33557045381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 199846 + ... + 327188.

It is an arithmetic number, because the mean of its divisors is an integer number (2961512064).

Almost surely, 2^33557045331 is an apocalyptic number.

33557045331 is a deficient number, since it is larger than the sum of its proper divisors (13827147693).

33557045331 is a wasteful number, since it uses less digits than its factorization.

33557045331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132530.

The product of its (nonzero) digits is 283500, while the sum is 39.

The spelling of 33557045331 in words is "thirty-three billion, five hundred fifty-seven million, forty-five thousand, three hundred thirty-one".