8165652497 has 2 divisors, whose sum is σ = 8165652498. Its totient is φ = 8165652496.

The previous prime is 8165652491. The next prime is 8165652499. The reversal of 8165652497 is 7942565618.

It is a Cunningham number, because it is equal to 90364²+1.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8165652496 + 1 = 90364^2 + 1^2 .

It is a cyclic number.

It is not a de Polignac number, because 8165652497 - 2¹⁴ = 8165636113 is a prime.

Together with 8165652499, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (8165652491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4082826248 + 4082826249.

It is an arithmetic number, because the mean of its divisors is an integer number (4082826249).

Almost surely, 2^8165652497 is an apocalyptic number.

It is an amenable number.

8165652497 is a deficient number, since it is larger than the sum of its proper divisors (1).

8165652497 is an equidigital number, since it uses as much as digits as its factorization.

8165652497 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3628800, while the sum is 53.

The square root of 8165652497 is about 90364.0000055332. Note that the first 5 decimals coincide. The cubic root of 8165652497 is about 2013.7101755362.

The spelling of 8165652497 in words is "eight billion, one hundred sixty-five million, six hundred fifty-two thousand, four hundred ninety-seven".