4072165613 has 2 divisors, whose sum is σ = 4072165614. Its totient is φ = 4072165612.

The previous prime is 4072165609. The next prime is 4072165621. The reversal of 4072165613 is 3165612704.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3033586084 + 1038579529 = 55078^2 + 32227^2 .

It is a cyclic number.

It is not a de Polignac number, because 4072165613 - 2² = 4072165609 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4072165813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2036082806 + 2036082807.

It is an arithmetic number, because the mean of its divisors is an integer number (2036082807).

Almost surely, 2^4072165613 is an apocalyptic number.

It is an amenable number.

4072165613 is a deficient number, since it is larger than the sum of its proper divisors (1).

4072165613 is an equidigital number, since it uses as much as digits as its factorization.

4072165613 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 4072165613 is about 63813.5221798640. The cubic root of 4072165613 is about 1596.8905250860.

The spelling of 4072165613 in words is "four billion, seventy-two million, one hundred sixty-five thousand, six hundred thirteen".