4227666605 has 4 divisors (see below), whose sum is σ = 5073199932. Its totient is φ = 3382133280.

The previous prime is 4227666563. The next prime is 4227666631. The reversal of 4227666605 is 5066667224.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1050991561 + 3176675044 = 32419^2 + 56362^2 .

It is not a de Polignac number, because 4227666605 - 2⁸ = 4227666349 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 422766656 + ... + 422766665.

It is an arithmetic number, because the mean of its divisors is an integer number (1268299983).

Almost surely, 2^4227666605 is an apocalyptic number.

It is an amenable number.

4227666605 is a deficient number, since it is larger than the sum of its proper divisors (845533327).

4227666605 is an equidigital number, since it uses as much as digits as its factorization.

4227666605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 845533326.

The product of its (nonzero) digits is 725760, while the sum is 44.

The square root of 4227666605 is about 65020.5091105876. The cubic root of 4227666605 is about 1616.9636012254.

The spelling of 4227666605 in words is "four billion, two hundred twenty-seven million, six hundred sixty-six thousand, six hundred five".