16442664001443 has 16 divisors (see below), whose sum is σ = 25641581289600. Its totient is φ = 10384840421640.

The previous prime is 16442664001433. The next prime is 16442664001513. The reversal of 16442664001443 is 34410046624461.

It is a happy number.

16442664001443 is a `hidden beast` number, since 1 + 6 + 4 + 42 + 66 + 400 + 144 + 3 = 666.

It is not a de Polignac number, because 16442664001443 - 2⁴⁰ = 15343152373667 is a prime.

It is a super-3 number, since 3×16442664001443³ (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (16442664001433) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16025987793 + ... + 16025988818.

It is an arithmetic number, because the mean of its divisors is an integer number (1602598830600).

Almost surely, 2^{16442664001443} is an apocalyptic number.

16442664001443 is a deficient number, since it is larger than the sum of its proper divisors (9198917288157).

16442664001443 is a wasteful number, since it uses less digits than its factorization.

16442664001443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32051976639 (or 32051976633 counting only the distinct ones).

The product of its (nonzero) digits is 1327104, while the sum is 45.

The spelling of 16442664001443 in words is "sixteen trillion, four hundred forty-two billion, six hundred sixty-four million, one thousand, four hundred forty-three".