33145334505 has 24 divisors (see below), whose sum is σ = 57460059072. Its totient is φ = 17675005344.

The previous prime is 33145334489. The next prime is 33145334531. The reversal of 33145334505 is 50543354133.

33145334505 is a `hidden beast` number, since 3 + 3 + 145 + 3 + 3 + 4 + 505 = 666.

It is not a de Polignac number, because 33145334505 - 2⁴ = 33145334489 is a prime.

It is a super-2 number, since 2×33145334505² (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 33145334505.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 293902 + ... + 390728.

It is an arithmetic number, because the mean of its divisors is an integer number (2394169128).

Almost surely, 2^33145334505 is an apocalyptic number.

It is an amenable number.

33145334505 is a deficient number, since it is larger than the sum of its proper divisors (24314724567).

33145334505 is a wasteful number, since it uses less digits than its factorization.

33145334505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104445 (or 104442 counting only the distinct ones).

The product of its (nonzero) digits is 162000, while the sum is 36.

Adding to 33145334505 its reverse (50543354133), we get a palindrome (83688688638).

The spelling of 33145334505 in words is "thirty-three billion, one hundred forty-five million, three hundred thirty-four thousand, five hundred five".