8565648061 has 2 divisors, whose sum is σ = 8565648062. Its totient is φ = 8565648060.

The previous prime is 8565648041. The next prime is 8565648071. The reversal of 8565648061 is 1608465658.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8550515961 + 15132100 = 92469^2 + 3890^2 .

It is a cyclic number.

It is not a de Polignac number, because 8565648061 - 2⁷ = 8565647933 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8565647996 and 8565648014.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8565648041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4282824030 + 4282824031.

It is an arithmetic number, because the mean of its divisors is an integer number (4282824031).

Almost surely, 2^8565648061 is an apocalyptic number.

It is an amenable number.

8565648061 is a deficient number, since it is larger than the sum of its proper divisors (1).

8565648061 is an equidigital number, since it uses as much as digits as its factorization.

8565648061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1382400, while the sum is 49.

The square root of 8565648061 is about 92550.7863877990. The cubic root of 8565648061 is about 2046.0680580415.

The spelling of 8565648061 in words is "eight billion, five hundred sixty-five million, six hundred forty-eight thousand, sixty-one".