452646661 has 2 divisors, whose sum is σ = 452646662. Its totient is φ = 452646660.

The previous prime is 452646629. The next prime is 452646673. The reversal of 452646661 is 166646254.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 279224100 + 173422561 = 16710^2 + 13169^2 .

It is a cyclic number.

It is not a de Polignac number, because 452646661 - 2⁵ = 452646629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (452646611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 226323330 + 226323331.

It is an arithmetic number, because the mean of its divisors is an integer number (226323331).

Almost surely, 2^452646661 is an apocalyptic number.

It is an amenable number.

452646661 is a deficient number, since it is larger than the sum of its proper divisors (1).

452646661 is an equidigital number, since it uses as much as digits as its factorization.

452646661 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 207360, while the sum is 40.

The square root of 452646661 is about 21275.4943773347. The cubic root of 452646661 is about 767.8088383498.

The spelling of 452646661 in words is "four hundred fifty-two million, six hundred forty-six thousand, six hundred sixty-one".