223468600561 has 2 divisors, whose sum is σ = 223468600562. Its totient is φ = 223468600560.

The previous prime is 223468600477. The next prime is 223468600591. The reversal of 223468600561 is 165006864322.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 142152374961 + 81316225600 = 377031^2 + 285160^2 .

It is a cyclic number.

It is not a de Polignac number, because 223468600561 - 2²⁷ = 223334382833 is a prime.

It is not a weakly prime, because it can be changed into another prime (223468600591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111734300280 + 111734300281.

It is an arithmetic number, because the mean of its divisors is an integer number (111734300281).

Almost surely, 2^223468600561 is an apocalyptic number.

It is an amenable number.

223468600561 is a deficient number, since it is larger than the sum of its proper divisors (1).

223468600561 is an equidigital number, since it uses as much as digits as its factorization.

223468600561 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 414720, while the sum is 43.

The spelling of 223468600561 in words is "two hundred twenty-three billion, four hundred sixty-eight million, six hundred thousand, five hundred sixty-one".