4448066641 has 2 divisors, whose sum is σ = 4448066642. Its totient is φ = 4448066640.

The previous prime is 4448066621. The next prime is 4448066657. The reversal of 4448066641 is 1466608444.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4440889600 + 7177041 = 66640^2 + 2679^2 .

It is a cyclic number.

It is not a de Polignac number, because 4448066641 - 2¹⁵ = 4448033873 is a prime.

It is not a weakly prime, because it can be changed into another prime (4448066621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2224033320 + 2224033321.

It is an arithmetic number, because the mean of its divisors is an integer number (2224033321).

Almost surely, 2^4448066641 is an apocalyptic number.

It is an amenable number.

4448066641 is a deficient number, since it is larger than the sum of its proper divisors (1).

4448066641 is an equidigital number, since it uses as much as digits as its factorization.

4448066641 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 442368, while the sum is 43.

The square root of 4448066641 is about 66693.8276079578. The cubic root of 4448066641 is about 1644.5879168455.

The spelling of 4448066641 in words is "four billion, four hundred forty-eight million, sixty-six thousand, six hundred forty-one".