446664226661 has 2 divisors, whose sum is σ = 446664226662. Its totient is φ = 446664226660.

The previous prime is 446664226637. The next prime is 446664226663. The reversal of 446664226661 is 166622466644.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 277722676036 + 168941550625 = 526994^2 + 411025^2 .

It is a cyclic number.

It is not a de Polignac number, because 446664226661 - 2⁶ = 446664226597 is a prime.

Together with 446664226663, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (446664226663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 223332113330 + 223332113331.

It is an arithmetic number, because the mean of its divisors is an integer number (223332113331).

Almost surely, 2^446664226661 is an apocalyptic number.

It is an amenable number.

446664226661 is a deficient number, since it is larger than the sum of its proper divisors (1).

446664226661 is an equidigital number, since it uses as much as digits as its factorization.

446664226661 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11943936, while the sum is 53.

The spelling of 446664226661 in words is "four hundred forty-six billion, six hundred sixty-four million, two hundred twenty-six thousand, six hundred sixty-one".