16433432423 has 2 divisors, whose sum is σ = 16433432424. Its totient is φ = 16433432422.

The previous prime is 16433432417. The next prime is 16433432441. The reversal of 16433432423 is 32423433461.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (32423433461) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16433432423 - 2⁸ = 16433432167 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16433432623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8216716211 + 8216716212.

It is an arithmetic number, because the mean of its divisors is an integer number (8216716212).

Almost surely, 2^16433432423 is an apocalyptic number.

16433432423 is a deficient number, since it is larger than the sum of its proper divisors (1).

16433432423 is an equidigital number, since it uses as much as digits as its factorization.

16433432423 is an evil number, because the sum of its binary digits is even.

The product of its digits is 124416, while the sum is 35.

Adding to 16433432423 its reverse (32423433461), we get a palindrome (48856865884).

The spelling of 16433432423 in words is "sixteen billion, four hundred thirty-three million, four hundred thirty-two thousand, four hundred twenty-three".