5665520221333 has 32 divisors (see below), whose sum is σ = 6888424505600. Its totient is φ = 4551584679936.

The previous prime is 5665520221267. The next prime is 5665520221349. The reversal of 5665520221333 is 3331220255665.

It is not a de Polignac number, because 5665520221333 - 2¹³ = 5665520213141 is a prime.

It is a super-3 number, since 3×5665520221333³ (a number of 39 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5665520221333.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5665520221363) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 9466135 + ... + 10046827.

It is an arithmetic number, because the mean of its divisors is an integer number (215263265800).

Almost surely, 2^{5665520221333} is an apocalyptic number.

It is an amenable number.

5665520221333 is a deficient number, since it is larger than the sum of its proper divisors (1222904284267).

5665520221333 is a wasteful number, since it uses less digits than its factorization.

5665520221333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 581501.

The product of its (nonzero) digits is 972000, while the sum is 43.

Adding to 5665520221333 its reverse (3331220255665), we get a palindrome (8996740476998).

The spelling of 5665520221333 in words is "five trillion, six hundred sixty-five billion, five hundred twenty million, two hundred twenty-one thousand, three hundred thirty-three".