226246710421661 has 2 divisors, whose sum is σ = 226246710421662. Its totient is φ = 226246710421660.

The previous prime is 226246710421553. The next prime is 226246710421703. The reversal of 226246710421661 is 166124017642622.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 215871025502500 + 10375684919161 = 14692550^2 + 3221131^2 .

It is a cyclic number.

It is not a de Polignac number, because 226246710421661 - 2³⁰ = 226245636679837 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (226246710423661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113123355210830 + 113123355210831.

It is an arithmetic number, because the mean of its divisors is an integer number (113123355210831).

Almost surely, 2^{226246710421661} is an apocalyptic number.

It is an amenable number.

226246710421661 is a deficient number, since it is larger than the sum of its proper divisors (1).

226246710421661 is an equidigital number, since it uses as much as digits as its factorization.

226246710421661 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2322432, while the sum is 50.

The spelling of 226246710421661 in words is "two hundred twenty-six trillion, two hundred forty-six billion, seven hundred ten million, four hundred twenty-one thousand, six hundred sixty-one".