223161124431605 has 8 divisors (see below), whose sum is σ = 283545899277912. Its totient is φ = 168027199571968.

The previous prime is 223161124431601. The next prime is 223161124431629. The reversal of 223161124431605 is 506134421161322.

It can be written as a sum of positive squares in 4 ways, for example, as 39324161726404 + 183836962705201 = 6270898^2 + 13558649^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 223161124431605 - 2² = 223161124431601 is a prime.

It is a super-3 number, since 3×223161124431605³ (a number of 44 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223161124431601) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1312712496572 + ... + 1312712496741.

It is an arithmetic number, because the mean of its divisors is an integer number (35443237409739).

Almost surely, 2^{223161124431605} is an apocalyptic number.

It is an amenable number.

223161124431605 is a deficient number, since it is larger than the sum of its proper divisors (60384774846307).

223161124431605 is a wasteful number, since it uses less digits than its factorization.

223161124431605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2625424993335.

The product of its (nonzero) digits is 207360, while the sum is 41.

Adding to 223161124431605 its reverse (506134421161322), we get a palindrome (729295545592927).

The spelling of 223161124431605 in words is "two hundred twenty-three trillion, one hundred sixty-one billion, one hundred twenty-four million, four hundred thirty-one thousand, six hundred five".