16066651661005 has 32 divisors (see below), whose sum is σ = 21043221154560. Its totient is φ = 11678998456320.

The previous prime is 16066651661003. The next prime is 16066651661029. The reversal of 16066651661005 is 50016615666061.

16066651661005 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 16066651661005 - 2¹ = 16066651661003 is a prime.

It is a super-2 number, since 2×16066651661005² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 16066651661005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16066651661003) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1644988632 + ... + 1644998398.

It is an arithmetic number, because the mean of its divisors is an integer number (657600661080).

Almost surely, 2^{16066651661005} is an apocalyptic number.

It is an amenable number.

16066651661005 is a deficient number, since it is larger than the sum of its proper divisors (4976569493555).

16066651661005 is a wasteful number, since it uses less digits than its factorization.

16066651661005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21669.

The product of its (nonzero) digits is 1166400, while the sum is 49.

The spelling of 16066651661005 in words is "sixteen trillion, sixty-six billion, six hundred fifty-one million, six hundred sixty-one thousand, five".