223220045233657 has 2 divisors, whose sum is σ = 223220045233658. Its totient is φ = 223220045233656.

The previous prime is 223220045233637. The next prime is 223220045233687. The reversal of 223220045233657 is 756332540022322.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 192382337078416 + 30837708155241 = 13870196^2 + 5553171^2 .

It is a cyclic number.

It is not a de Polignac number, because 223220045233657 - 2⁴⁷ = 82482556878329 is a prime.

It is a super-3 number, since 3×223220045233657³ (a number of 44 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (223220045233637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111610022616828 + 111610022616829.

It is an arithmetic number, because the mean of its divisors is an integer number (111610022616829).

Almost surely, 2^{223220045233657} is an apocalyptic number.

It is an amenable number.

223220045233657 is a deficient number, since it is larger than the sum of its proper divisors (1).

223220045233657 is an equidigital number, since it uses as much as digits as its factorization.

223220045233657 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3628800, while the sum is 46.

Adding to 223220045233657 its reverse (756332540022322), we get a palindrome (979552585255979).

The spelling of 223220045233657 in words is "two hundred twenty-three trillion, two hundred twenty billion, forty-five million, two hundred thirty-three thousand, six hundred fifty-seven".