4056666281 has 2 divisors, whose sum is σ = 4056666282. Its totient is φ = 4056666280.

The previous prime is 4056666277. The next prime is 4056666343. The reversal of 4056666281 is 1826666504.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3895757056 + 160909225 = 62416^2 + 12685^2 .

It is a cyclic number.

It is not a de Polignac number, because 4056666281 - 2² = 4056666277 is a prime.

It is a super-2 number, since 2×4056666281² = 32913082630804741922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (4056666881) 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, 2028333140 + 2028333141.

It is an arithmetic number, because the mean of its divisors is an integer number (2028333141).

Almost surely, 2^4056666281 is an apocalyptic number.

It is an amenable number.

4056666281 is a deficient number, since it is larger than the sum of its proper divisors (1).

4056666281 is an equidigital number, since it uses as much as digits as its factorization.

4056666281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 414720, while the sum is 44.

The square root of 4056666281 is about 63691.9640221590. The cubic root of 4056666281 is about 1594.8619398784.

The spelling of 4056666281 in words is "four billion, fifty-six million, six hundred sixty-six thousand, two hundred eighty-one".