2066209727 has 4 divisors (see below), whose sum is σ = 2114261160. Its totient is φ = 2018158296.

The previous prime is 2066209703. The next prime is 2066209771. The reversal of 2066209727 is 7279026602.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2066209727 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2066409727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24025652 + ... + 24025737.

It is an arithmetic number, because the mean of its divisors is an integer number (528565290).

Almost surely, 2^2066209727 is an apocalyptic number.

2066209727 is a deficient number, since it is larger than the sum of its proper divisors (48051433).

2066209727 is an equidigital number, since it uses as much as digits as its factorization.

2066209727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48051432.

The product of its (nonzero) digits is 127008, while the sum is 41.

The square root of 2066209727 is about 45455.5797125061. The cubic root of 2066209727 is about 1273.6735613436.

The spelling of 2066209727 in words is "two billion, sixty-six million, two hundred nine thousand, seven hundred twenty-seven".