8665044461 has 2 divisors, whose sum is σ = 8665044462. Its totient is φ = 8665044460.

The previous prime is 8665044457. The next prime is 8665044469. The reversal of 8665044461 is 1644405668.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5991534025 + 2673510436 = 77405^2 + 51706^2 .

It is a cyclic number.

It is not a de Polignac number, because 8665044461 - 2² = 8665044457 is a prime.

It is a super-2 number, since 2×8665044461² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8665044469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4332522230 + 4332522231.

It is an arithmetic number, because the mean of its divisors is an integer number (4332522231).

Almost surely, 2^8665044461 is an apocalyptic number.

It is an amenable number.

8665044461 is a deficient number, since it is larger than the sum of its proper divisors (1).

8665044461 is an equidigital number, since it uses as much as digits as its factorization.

8665044461 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 552960, while the sum is 44.

The square root of 8665044461 is about 93086.2205753354. The cubic root of 8665044461 is about 2053.9518820105.

The spelling of 8665044461 in words is "eight billion, six hundred sixty-five million, forty-four thousand, four hundred sixty-one".