16432523166431 has 2 divisors, whose sum is σ = 16432523166432. Its totient is φ = 16432523166430.

The previous prime is 16432523166383. The next prime is 16432523166467. The reversal of 16432523166431 is 13466132523461.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16432523166431 is a prime.

It is a super-2 number, since 2×16432523166431² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16432523106431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8216261583215 + 8216261583216.

It is an arithmetic number, because the mean of its divisors is an integer number (8216261583216).

Almost surely, 2^{16432523166431} is an apocalyptic number.

16432523166431 is a deficient number, since it is larger than the sum of its proper divisors (1).

16432523166431 is an equidigital number, since it uses as much as digits as its factorization.

16432523166431 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1866240, while the sum is 47.

Adding to 16432523166431 its reverse (13466132523461), we get a palindrome (29898655689892).

The spelling of 16432523166431 in words is "sixteen trillion, four hundred thirty-two billion, five hundred twenty-three million, one hundred sixty-six thousand, four hundred thirty-one".