4616445221 has 2 divisors, whose sum is σ = 4616445222. Its totient is φ = 4616445220.

The previous prime is 4616445209. The next prime is 4616445227. The reversal of 4616445221 is 1225446164.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3661944196 + 954501025 = 60514^2 + 30895^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4616445221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4616445227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2308222610 + 2308222611.

It is an arithmetic number, because the mean of its divisors is an integer number (2308222611).

Almost surely, 2^4616445221 is an apocalyptic number.

It is an amenable number.

4616445221 is a deficient number, since it is larger than the sum of its proper divisors (1).

4616445221 is an equidigital number, since it uses as much as digits as its factorization.

4616445221 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 46080, while the sum is 35.

The square root of 4616445221 is about 67944.4274462593. The cubic root of 4616445221 is about 1665.0830333711.

The spelling of 4616445221 in words is "four billion, six hundred sixteen million, four hundred forty-five thousand, two hundred twenty-one".