2271666539 has 2 divisors, whose sum is σ = 2271666540. Its totient is φ = 2271666538.

The previous prime is 2271666437. The next prime is 2271666569. The reversal of 2271666539 is 9356661722.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2271666539 is a prime.

It is a super-3 number, since 3×2271666539³ (a number of 29 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2271666493 and 2271666502.

It is not a weakly prime, because it can be changed into another prime (2271666569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1135833269 + 1135833270.

It is an arithmetic number, because the mean of its divisors is an integer number (1135833270).

Almost surely, 2^2271666539 is an apocalyptic number.

2271666539 is a deficient number, since it is larger than the sum of its proper divisors (1).

2271666539 is an equidigital number, since it uses as much as digits as its factorization.

2271666539 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 816480, while the sum is 47.

The square root of 2271666539 is about 47662.0030947085. The cubic root of 2271666539 is about 1314.5633712578.

The spelling of 2271666539 in words is "two billion, two hundred seventy-one million, six hundred sixty-six thousand, five hundred thirty-nine".