8441045665 has 16 divisors (see below), whose sum is σ = 10919453328. Its totient is φ = 6227087616.

The previous prime is 8441045623. The next prime is 8441045677. The reversal of 8441045665 is 5665401448.

It can be written as a sum of positive squares in 8 ways, for example, as 165868641 + 8275177024 = 12879^2 + 90968^2 .

It is a cyclic number.

It is not a de Polignac number, because 8441045665 - 2⁹ = 8441045153 is a prime.

It is a super-3 number, since 3×8441045665³ (a number of 31 digits) contains 333 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 322 + ... + 129931.

It is an arithmetic number, because the mean of its divisors is an integer number (682465833).

Almost surely, 2^8441045665 is an apocalyptic number.

It is an amenable number.

8441045665 is a deficient number, since it is larger than the sum of its proper divisors (2478407663).

8441045665 is a wasteful number, since it uses less digits than its factorization.

8441045665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131268.

The product of its (nonzero) digits is 460800, while the sum is 43.

The square root of 8441045665 is about 91875.1634828477. The cubic root of 8441045665 is about 2036.0983403782.

The spelling of 8441045665 in words is "eight billion, four hundred forty-one million, forty-five thousand, six hundred sixty-five".