16432640316031 has 4 divisors (see below), whose sum is σ = 17399266216992. Its totient is φ = 15466014415072.

The previous prime is 16432640316013. The next prime is 16432640316041. The reversal of 16432640316031 is 13061304623461.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 16432640316031 - 2⁹ = 16432640315519 is a prime.

It is a super-2 number, since 2×16432640316031² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16432640316041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 483312950455 + ... + 483312950488.

It is an arithmetic number, because the mean of its divisors is an integer number (4349816554248).

Almost surely, 2^{16432640316031} is an apocalyptic number.

16432640316031 is a deficient number, since it is larger than the sum of its proper divisors (966625900961).

16432640316031 is an equidigital number, since it uses as much as digits as its factorization.

16432640316031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 966625900960.

The product of its (nonzero) digits is 186624, while the sum is 40.

Adding to 16432640316031 its reverse (13061304623461), we get a palindrome (29493944939492).

The spelling of 16432640316031 in words is "sixteen trillion, four hundred thirty-two billion, six hundred forty million, three hundred sixteen thousand, thirty-one".