228661126661047 has 2 divisors, whose sum is σ = 228661126661048. Its totient is φ = 228661126661046.

The previous prime is 228661126661017. The next prime is 228661126661057. The reversal of 228661126661047 is 740166621166822.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 228661126661047 - 2¹¹ = 228661126658999 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 228661126660982 and 228661126661000.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (228661126661017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114330563330523 + 114330563330524.

It is an arithmetic number, because the mean of its divisors is an integer number (114330563330524).

Almost surely, 2^{228661126661047} is an apocalyptic number.

228661126661047 is a deficient number, since it is larger than the sum of its proper divisors (1).

228661126661047 is an equidigital number, since it uses as much as digits as its factorization.

228661126661047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13934592, while the sum is 58.

The spelling of 228661126661047 in words is "two hundred twenty-eight trillion, six hundred sixty-one billion, one hundred twenty-six million, six hundred sixty-one thousand, forty-seven".