4416343544021 has 2 divisors, whose sum is σ = 4416343544022. Its totient is φ = 4416343544020.

The previous prime is 4416343543999. The next prime is 4416343544029. The reversal of 4416343544021 is 1204453436144.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3207913834225 + 1208429709796 = 1791065^2 + 1099286^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4416343544021 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4416343544021.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4416343544029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2208171772010 + 2208171772011.

It is an arithmetic number, because the mean of its divisors is an integer number (2208171772011).

Almost surely, 2^{4416343544021} is an apocalyptic number.

It is an amenable number.

4416343544021 is a deficient number, since it is larger than the sum of its proper divisors (1).

4416343544021 is an equidigital number, since it uses as much as digits as its factorization.

4416343544021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 552960, while the sum is 41.

The spelling of 4416343544021 in words is "four trillion, four hundred sixteen billion, three hundred forty-three million, five hundred forty-four thousand, twenty-one".