4066615243 has 2 divisors, whose sum is σ = 4066615244. Its totient is φ = 4066615242.

The previous prime is 4066615213. The next prime is 4066615261. The reversal of 4066615243 is 3425166604.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4066615243 - 2²⁹ = 3529744331 is a prime.

It is not a weakly prime, because it can be changed into another prime (4066615213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2033307621 + 2033307622.

It is an arithmetic number, because the mean of its divisors is an integer number (2033307622).

Almost surely, 2^4066615243 is an apocalyptic number.

4066615243 is a deficient number, since it is larger than the sum of its proper divisors (1).

4066615243 is an equidigital number, since it uses as much as digits as its factorization.

4066615243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 103680, while the sum is 37.

The square root of 4066615243 is about 63770.0183707046. The cubic root of 4066615243 is about 1596.1646735308.

The spelling of 4066615243 in words is "four billion, sixty-six million, six hundred fifteen thousand, two hundred forty-three".