16442327999 has 4 divisors (see below), whose sum is σ = 16534184760. Its totient is φ = 16350471240.

The previous prime is 16442327969. The next prime is 16442328047. The reversal of 16442327999 is 99972324461.

16442327999 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 99972324461 = 463 ⋅215922947.

It is a cyclic number.

It is not a de Polignac number, because 16442327999 - 2¹² = 16442323903 is a prime.

It is a super-3 number, since 3×16442327999³ (a number of 32 digits) contains 333 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 (16442327969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45928112 + ... + 45928469.

It is an arithmetic number, because the mean of its divisors is an integer number (4133546190).

Almost surely, 2^16442327999 is an apocalyptic number.

16442327999 is a deficient number, since it is larger than the sum of its proper divisors (91856761).

16442327999 is an equidigital number, since it uses as much as digits as its factorization.

16442327999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91856760.

The product of its digits is 5878656, while the sum is 56.

The spelling of 16442327999 in words is "sixteen billion, four hundred forty-two million, three hundred twenty-seven thousand, nine hundred ninety-nine".