452668661 has 2 divisors, whose sum is σ = 452668662. Its totient is φ = 452668660.

The previous prime is 452668631. The next prime is 452668717. The reversal of 452668661 is 166866254.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 438274225 + 14394436 = 20935^2 + 3794^2 .

It is a cyclic number.

It is not a de Polignac number, because 452668661 - 2¹⁰ = 452667637 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (452668631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 226334330 + 226334331.

It is an arithmetic number, because the mean of its divisors is an integer number (226334331).

Almost surely, 2^452668661 is an apocalyptic number.

It is an amenable number.

452668661 is a deficient number, since it is larger than the sum of its proper divisors (1).

452668661 is an equidigital number, since it uses as much as digits as its factorization.

452668661 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 414720, while the sum is 44.

The square root of 452668661 is about 21276.0113978161. The cubic root of 452668661 is about 767.8212774273.

The spelling of 452668661 in words is "four hundred fifty-two million, six hundred sixty-eight thousand, six hundred sixty-one".