16005605066001 has 48 divisors (see below), whose sum is σ = 25474907203200. Its totient is φ = 9638368556544.

The previous prime is 16005605065979. The next prime is 16005605066039. The reversal of 16005605066001 is 10066050650061.

It is not a de Polignac number, because 16005605066001 - 2⁵ = 16005605065969 is a prime.

It is a super-2 number, since 2×16005605066001² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (16005605066501) 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, 10059331 + ... + 11541288.

It is an arithmetic number, because the mean of its divisors is an integer number (530727233400).

Almost surely, 2^{16005605066001} is an apocalyptic number.

It is an amenable number.

16005605066001 is a deficient number, since it is larger than the sum of its proper divisors (9469302137199).

16005605066001 is a wasteful number, since it uses less digits than its factorization.

16005605066001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21600838 (or 21600835 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The spelling of 16005605066001 in words is "sixteen trillion, five billion, six hundred five million, sixty-six thousand, one".