4165161205 has 4 divisors (see below), whose sum is σ = 4998193452. Its totient is φ = 3332128960.

The previous prime is 4165161181. The next prime is 4165161223. The reversal of 4165161205 is 5021615614.

4165161205 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 1599840004 + 2565321201 = 39998^2 + 50649^2 .

It is not a de Polignac number, because 4165161205 - 2⁹ = 4165160693 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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, 416516116 + ... + 416516125.

It is an arithmetic number, because the mean of its divisors is an integer number (1249548363).

Almost surely, 2^4165161205 is an apocalyptic number.

It is an amenable number.

4165161205 is a deficient number, since it is larger than the sum of its proper divisors (833032247).

4165161205 is an equidigital number, since it uses as much as digits as its factorization.

4165161205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 833032246.

The product of its (nonzero) digits is 7200, while the sum is 31.

The square root of 4165161205 is about 64538.0601273388. The cubic root of 4165161205 is about 1608.9551500295.

Adding to 4165161205 its reverse (5021615614), we get a palindrome (9186776819).

The spelling of 4165161205 in words is "four billion, one hundred sixty-five million, one hundred sixty-one thousand, two hundred five".