16066506040201 has 4 divisors (see below), whose sum is σ = 16112020221972. Its totient is φ = 16020991858432.

The previous prime is 16066506040187. The next prime is 16066506040243. The reversal of 16066506040201 is 10204060566061.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5791121925625 + 10275384114576 = 2406475^2 + 3205524^2 .

It is a cyclic number.

It is not a de Polignac number, because 16066506040201 - 2³⁷ = 15929067086729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16066506044201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22757090356 + ... + 22757091061.

It is an arithmetic number, because the mean of its divisors is an integer number (4028005055493).

Almost surely, 2^{16066506040201} is an apocalyptic number.

It is an amenable number.

16066506040201 is a deficient number, since it is larger than the sum of its proper divisors (45514181771).

16066506040201 is an equidigital number, since it uses as much as digits as its factorization.

16066506040201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45514181770.

The product of its (nonzero) digits is 51840, while the sum is 37.

The spelling of 16066506040201 in words is "sixteen trillion, sixty-six billion, five hundred six million, forty thousand, two hundred one".