33305504145 has 16 divisors (see below), whose sum is σ = 53596838592. Its totient is φ = 17660258240.

The previous prime is 33305504143. The next prime is 33305504153. The reversal of 33305504145 is 54140550333.

It is not a de Polignac number, because 33305504145 - 2¹ = 33305504143 is a prime.

It is a super-2 number, since 2×33305504145² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (33305504143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6414651 + ... + 6419840.

It is an arithmetic number, because the mean of its divisors is an integer number (3349802412).

Almost surely, 2^33305504145 is an apocalyptic number.

It is an amenable number.

33305504145 is a deficient number, since it is larger than the sum of its proper divisors (20291334447).

33305504145 is a wasteful number, since it uses less digits than its factorization.

33305504145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12834672.

The product of its (nonzero) digits is 54000, while the sum is 33.

The spelling of 33305504145 in words is "thirty-three billion, three hundred five million, five hundred four thousand, one hundred forty-five".