16005605066003 has 8 divisors (see below), whose sum is σ = 18665428648800. Its totient is φ = 13719090056280.

The previous prime is 16005605065979. The next prime is 16005605066039. The reversal of 16005605066003 is 30066050650061.

It is not a de Polignac number, because 16005605066003 - 2¹⁶ = 16005605000467 is a prime.

It is a super-3 number, since 3×16005605066003³ (a number of 41 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16005605066203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23331785468 + ... + 23331786153.

It is an arithmetic number, because the mean of its divisors is an integer number (2333178581100).

Almost surely, 2^{16005605066003} is an apocalyptic number.

16005605066003 is a deficient number, since it is larger than the sum of its proper divisors (2659823582797).

16005605066003 is an frugal number, since it uses more digits than its factorization.

16005605066003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46663571642 (or 46663571628 counting only the distinct ones).

The product of its (nonzero) digits is 97200, while the sum is 38.

The spelling of 16005605066003 in words is "sixteen trillion, five billion, six hundred five million, sixty-six thousand, three".