16464430223 has 2 divisors, whose sum is σ = 16464430224. Its totient is φ = 16464430222.

The previous prime is 16464430219. The next prime is 16464430253. The reversal of 16464430223 is 32203446461.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16464430223 - 2² = 16464430219 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16464430253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8232215111 + 8232215112.

It is an arithmetic number, because the mean of its divisors is an integer number (8232215112).

Almost surely, 2^16464430223 is an apocalyptic number.

16464430223 is a deficient number, since it is larger than the sum of its proper divisors (1).

16464430223 is an equidigital number, since it uses as much as digits as its factorization.

16464430223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 82944, while the sum is 35.

Adding to 16464430223 its reverse (32203446461), we get a palindrome (48667876684).

The spelling of 16464430223 in words is "sixteen billion, four hundred sixty-four million, four hundred thirty thousand, two hundred twenty-three".