16464228223 has 2 divisors, whose sum is σ = 16464228224. Its totient is φ = 16464228222.

The previous prime is 16464228133. The next prime is 16464228257. The reversal of 16464228223 is 32282246461.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16464228223 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16464228293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8232114111 + 8232114112.

It is an arithmetic number, because the mean of its divisors is an integer number (8232114112).

Almost surely, 2^16464228223 is an apocalyptic number.

16464228223 is a deficient number, since it is larger than the sum of its proper divisors (1).

16464228223 is an equidigital number, since it uses as much as digits as its factorization.

16464228223 is an evil number, because the sum of its binary digits is even.

The product of its digits is 221184, while the sum is 40.

The spelling of 16464228223 in words is "sixteen billion, four hundred sixty-four million, two hundred twenty-eight thousand, two hundred twenty-three".