455344661 has 2 divisors, whose sum is σ = 455344662. Its totient is φ = 455344660.

The previous prime is 455344651. The next prime is 455344693. The reversal of 455344661 is 166443554.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 291760561 + 163584100 = 17081^2 + 12790^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-455344661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (455344651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 227672330 + 227672331.

It is an arithmetic number, because the mean of its divisors is an integer number (227672331).

Almost surely, 2^455344661 is an apocalyptic number.

It is an amenable number.

455344661 is a deficient number, since it is larger than the sum of its proper divisors (1).

455344661 is an equidigital number, since it uses as much as digits as its factorization.

455344661 is an evil number, because the sum of its binary digits is even.

The product of its digits is 172800, while the sum is 38.

The square root of 455344661 is about 21338.8064567820. The cubic root of 455344661 is about 769.3313253716.

The spelling of 455344661 in words is "four hundred fifty-five million, three hundred forty-four thousand, six hundred sixty-one".