553311341113221 has 16 divisors (see below), whose sum is σ = 822637660187520. Its totient is φ = 367561507733280.

The previous prime is 553311341113151. The next prime is 553311341113249. The reversal of 553311341113221 is 122311143113355.

553311341113221 is a `hidden beast` number, since 5 + 5 + 3 + 3 + 1 + 1 + 3 + 411 + 13 + 221 = 666.

It is not a de Polignac number, because 553311341113221 - 2⁹ = 553311341112709 is a prime.

It is a super-2 number, since 2×553311341113221² (a number of 30 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (553311341113121) 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, 36464427705 + ... + 36464442878.

It is an arithmetic number, because the mean of its divisors is an integer number (51414853761720).

Almost surely, 2^{553311341113221} is an apocalyptic number.

It is an amenable number.

553311341113221 is a deficient number, since it is larger than the sum of its proper divisors (269326319074299).

553311341113221 is a wasteful number, since it uses less digits than its factorization.

553311341113221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72928870873 (or 72928870867 counting only the distinct ones).

The product of its digits is 32400, while the sum is 36.

Adding to 553311341113221 its reverse (122311143113355), we get a palindrome (675622484226576).

The spelling of 553311341113221 in words is "five hundred fifty-three trillion, three hundred eleven billion, three hundred forty-one million, one hundred thirteen thousand, two hundred twenty-one".