4066116605 has 8 divisors (see below), whose sum is σ = 4881534552. Its totient is φ = 3251430208.

The previous prime is 4066116599. The next prime is 4066116623. The reversal of 4066116605 is 5066116604.

It can be written as a sum of positive squares in 4 ways, for example, as 1866412804 + 2199703801 = 43202^2 + 46901^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4066116605 - 2²⁶ = 3999007741 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 7 ways as a sum of consecutive naturals, for example, 170582 + ... + 192951.

It is an arithmetic number, because the mean of its divisors is an integer number (610191819).

Almost surely, 2^4066116605 is an apocalyptic number.

It is an amenable number.

4066116605 is a deficient number, since it is larger than the sum of its proper divisors (815417947).

4066116605 is a wasteful number, since it uses less digits than its factorization.

4066116605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365775.

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 4066116605 is about 63766.1085922608. The cubic root of 4066116605 is about 1596.0994316490.

Subtracting 4066116605 from its reverse (5066116604), we obtain a palindrome (999999999).

The spelling of 4066116605 in words is "four billion, sixty-six million, one hundred sixteen thousand, six hundred five".