16442663551775 has 12 divisors (see below), whose sum is σ = 20389474566000. Its totient is φ = 13153761962880.

The previous prime is 16442663551747. The next prime is 16442663551793. The reversal of 16442663551775 is 57715536624461.

It is not a de Polignac number, because 16442663551775 - 2¹² = 16442663547679 is a prime.

It is a super-3 number, since 3×16442663551775³ (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8310875 + ... + 10097324.

It is an arithmetic number, because the mean of its divisors is an integer number (1699122880500).

Almost surely, 2^{16442663551775} is an apocalyptic number.

16442663551775 is a deficient number, since it is larger than the sum of its proper divisors (3946811014225).

16442663551775 is a wasteful number, since it uses less digits than its factorization.

16442663551775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18443938 (or 18443933 counting only the distinct ones).

The product of its digits is 127008000, while the sum is 62.

The spelling of 16442663551775 in words is "sixteen trillion, four hundred forty-two billion, six hundred sixty-three million, five hundred fifty-one thousand, seven hundred seventy-five".