224708795561 has 2 divisors, whose sum is σ = 224708795562. Its totient is φ = 224708795560.

The previous prime is 224708795557. The next prime is 224708795573. The reversal of 224708795561 is 165597807422.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 202248078400 + 22460717161 = 449720^2 + 149869^2 .

It is a cyclic number.

It is not a de Polignac number, because 224708795561 - 2² = 224708795557 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 224708795497 and 224708795506.

It is not a weakly prime, because it can be changed into another prime (224708795261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112354397780 + 112354397781.

It is an arithmetic number, because the mean of its divisors is an integer number (112354397781).

Almost surely, 2^224708795561 is an apocalyptic number.

It is an amenable number.

224708795561 is a deficient number, since it is larger than the sum of its proper divisors (1).

224708795561 is an equidigital number, since it uses as much as digits as its factorization.

224708795561 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8467200, while the sum is 56.

The spelling of 224708795561 in words is "two hundred twenty-four billion, seven hundred eight million, seven hundred ninety-five thousand, five hundred sixty-one".