8165737361 has 2 divisors, whose sum is σ = 8165737362. Its totient is φ = 8165737360.

The previous prime is 8165737319. The next prime is 8165737387. The reversal of 8165737361 is 1637375618.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8000229136 + 165508225 = 89444^2 + 12865^2 .

It is a cyclic number.

It is not a de Polignac number, because 8165737361 - 2¹⁴ = 8165720977 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (8165737561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4082868680 + 4082868681.

It is an arithmetic number, because the mean of its divisors is an integer number (4082868681).

Almost surely, 2^8165737361 is an apocalyptic number.

It is an amenable number.

8165737361 is a deficient number, since it is larger than the sum of its proper divisors (1).

8165737361 is an equidigital number, since it uses as much as digits as its factorization.

8165737361 is an evil number, because the sum of its binary digits is even.

The product of its digits is 635040, while the sum is 47.

The square root of 8165737361 is about 90364.4695718400. The cubic root of 8165737361 is about 2013.7171515416.

The spelling of 8165737361 in words is "eight billion, one hundred sixty-five million, seven hundred thirty-seven thousand, three hundred sixty-one".