229243632161 has 2 divisors, whose sum is σ = 229243632162. Its totient is φ = 229243632160.

The previous prime is 229243632151. The next prime is 229243632181. The reversal of 229243632161 is 161236342922.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 217931182561 + 11312449600 = 466831^2 + 106360^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-229243632161 is a prime.

It is not a weakly prime, because it can be changed into another prime (229243632151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114621816080 + 114621816081.

It is an arithmetic number, because the mean of its divisors is an integer number (114621816081).

Almost surely, 2^229243632161 is an apocalyptic number.

It is an amenable number.

229243632161 is a deficient number, since it is larger than the sum of its proper divisors (1).

229243632161 is an equidigital number, since it uses as much as digits as its factorization.

229243632161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 186624, while the sum is 41.

The spelling of 229243632161 in words is "two hundred twenty-nine billion, two hundred forty-three million, six hundred thirty-two thousand, one hundred sixty-one".