226011661 has 2 divisors, whose sum is σ = 226011662. Its totient is φ = 226011660.

The previous prime is 226011641. The next prime is 226011679. The reversal of 226011661 is 166110622.

226011661 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 173738761 + 52272900 = 13181^2 + 7230^2 .

It is a cyclic number.

It is not a de Polignac number, because 226011661 - 2⁵ = 226011629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (226011601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113005830 + 113005831.

It is an arithmetic number, because the mean of its divisors is an integer number (113005831).

Almost surely, 2^226011661 is an apocalyptic number.

It is an amenable number.

226011661 is a deficient number, since it is larger than the sum of its proper divisors (1).

226011661 is an equidigital number, since it uses as much as digits as its factorization.

226011661 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 226011661 is about 15033.6842124610. The cubic root of 226011661 is about 609.1304110356.

The spelling of 226011661 in words is "two hundred twenty-six million, eleven thousand, six hundred sixty-one".