16442066747775 has 48 divisors (see below), whose sum is σ = 27197956997120. Its totient is φ = 8764671484800.

The previous prime is 16442066747749. The next prime is 16442066747779. The reversal of 16442066747775 is 57774766024461.

It is not a de Polignac number, because 16442066747775 - 2¹⁹ = 16442066223487 is a prime.

It is a super-3 number, since 3×16442066747775³ (a number of 41 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16442066747779) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2249560821 + ... + 2249568129.

Almost surely, 2^{16442066747775} is an apocalyptic number.

16442066747775 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

16442066747775 is a deficient number, since it is larger than the sum of its proper divisors (10755890249345).

16442066747775 is a wasteful number, since it uses less digits than its factorization.

16442066747775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18376 (or 18371 counting only the distinct ones).

The product of its (nonzero) digits is 331914240, while the sum is 66.

The spelling of 16442066747775 in words is "sixteen trillion, four hundred forty-two billion, sixty-six million, seven hundred forty-seven thousand, seven hundred seventy-five".