226568561281 has 16 divisors (see below), whose sum is σ = 228006360000. Its totient is φ = 225137203200.

The previous prime is 226568561269. The next prime is 226568561357. The reversal of 226568561281 is 182165865622.

It is a cyclic number.

It is not a de Polignac number, because 226568561281 - 2¹⁹ = 226568036993 is a prime.

It is a super-2 number, since 2×226568561281² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (226568561221) 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, 181399345 + ... + 181400593.

It is an arithmetic number, because the mean of its divisors is an integer number (14250397500).

Almost surely, 2^226568561281 is an apocalyptic number.

It is an amenable number.

226568561281 is a deficient number, since it is larger than the sum of its proper divisors (1437798719).

226568561281 is a wasteful number, since it uses less digits than its factorization.

226568561281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3024.

The product of its digits is 2764800, while the sum is 52.

The spelling of 226568561281 in words is "two hundred twenty-six billion, five hundred sixty-eight million, five hundred sixty-one thousand, two hundred eighty-one".