228163635191 has 2 divisors, whose sum is σ = 228163635192. Its totient is φ = 228163635190.

The previous prime is 228163635169. The next prime is 228163635223. The reversal of 228163635191 is 191536361822.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 228163635191 - 2¹⁸ = 228163373047 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (228163635991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114081817595 + 114081817596.

It is an arithmetic number, because the mean of its divisors is an integer number (114081817596).

Almost surely, 2^228163635191 is an apocalyptic number.

228163635191 is a deficient number, since it is larger than the sum of its proper divisors (1).

228163635191 is an equidigital number, since it uses as much as digits as its factorization.

228163635191 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 466560, while the sum is 47.

The spelling of 228163635191 in words is "two hundred twenty-eight billion, one hundred sixty-three million, six hundred thirty-five thousand, one hundred ninety-one".