16442406663 has 8 divisors (see below), whose sum is σ = 22095833088. Its totient is φ = 10875292344.

The previous prime is 16442406619. The next prime is 16442406683. The reversal of 16442406663 is 36660424461.

16442406663 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 16442406663 - 2¹³ = 16442398471 is a prime.

It is a super-3 number, since 3×16442406663³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16442406683) 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 7 ways as a sum of consecutive naturals, for example, 21577581 + ... + 21578342.

It is an arithmetic number, because the mean of its divisors is an integer number (2761979136).

Almost surely, 2^16442406663 is an apocalyptic number.

16442406663 is a deficient number, since it is larger than the sum of its proper divisors (5653426425).

16442406663 is a wasteful number, since it uses less digits than its factorization.

16442406663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43156053.

The product of its (nonzero) digits is 497664, while the sum is 42.

The spelling of 16442406663 in words is "sixteen billion, four hundred forty-two million, four hundred six thousand, six hundred sixty-three".