226643442051361 has 4 divisors (see below), whose sum is σ = 232171330881924. Its totient is φ = 221115553220800.

The previous prime is 226643442051307. The next prime is 226643442051407. The reversal of 226643442051361 is 163150244346622.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 15646929584400 + 210996512466961 = 3955620^2 + 14525719^2 .

It is a cyclic number.

It is not a de Polignac number, because 226643442051361 - 2¹⁹ = 226643441527073 is a prime.

It is not an unprimeable number, because it can be changed into a prime (226643442051661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2763944415220 + ... + 2763944415301.

It is an arithmetic number, because the mean of its divisors is an integer number (58042832720481).

Almost surely, 2^{226643442051361} is an apocalyptic number.

It is an amenable number.

226643442051361 is a deficient number, since it is larger than the sum of its proper divisors (5527888830563).

226643442051361 is an equidigital number, since it uses as much as digits as its factorization.

226643442051361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5527888830562.

The product of its (nonzero) digits is 4976640, while the sum is 49.

Adding to 226643442051361 its reverse (163150244346622), we get a palindrome (389793686397983).

The spelling of 226643442051361 in words is "two hundred twenty-six trillion, six hundred forty-three billion, four hundred forty-two million, fifty-one thousand, three hundred sixty-one".