33215314645 has 16 divisors (see below), whose sum is σ = 43780371840. Its totient is φ = 24079201344.

The previous prime is 33215314631. The next prime is 33215314667. The reversal of 33215314645 is 54641351233.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33215314645 is a prime.

It is a super-2 number, since 2×33215314645² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 7598574 + ... + 7602943.

It is an arithmetic number, because the mean of its divisors is an integer number (2736273240).

Almost surely, 2^33215314645 is an apocalyptic number.

It is an amenable number.

33215314645 is a deficient number, since it is larger than the sum of its proper divisors (10565057195).

33215314645 is a wasteful number, since it uses less digits than its factorization.

33215314645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15201564.

The product of its digits is 129600, while the sum is 37.

Adding to 33215314645 its reverse (54641351233), we get a palindrome (87856665878).

The spelling of 33215314645 in words is "thirty-three billion, two hundred fifteen million, three hundred fourteen thousand, six hundred forty-five".