4066623149 has 2 divisors, whose sum is σ = 4066623150. Its totient is φ = 4066623148.

The previous prime is 4066623137. The next prime is 4066623229. The reversal of 4066623149 is 9413266604.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2333566249 + 1733056900 = 48307^2 + 41630^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4066623149 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4066623109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2033311574 + 2033311575.

It is an arithmetic number, because the mean of its divisors is an integer number (2033311575).

Almost surely, 2^4066623149 is an apocalyptic number.

It is an amenable number.

4066623149 is a deficient number, since it is larger than the sum of its proper divisors (1).

4066623149 is an equidigital number, since it uses as much as digits as its factorization.

4066623149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 186624, while the sum is 41.

The square root of 4066623149 is about 63770.0803590524. The cubic root of 4066623149 is about 1596.1657079103.

The spelling of 4066623149 in words is "four billion, sixty-six million, six hundred twenty-three thousand, one hundred forty-nine".