452016661 has 2 divisors, whose sum is σ = 452016662. Its totient is φ = 452016660.

The previous prime is 452016647. The next prime is 452016683. The reversal of 452016661 is 166610254.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 392634225 + 59382436 = 19815^2 + 7706^2 .

It is a cyclic number.

It is not a de Polignac number, because 452016661 - 2²⁵ = 418462229 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (452010661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 226008330 + 226008331.

It is an arithmetic number, because the mean of its divisors is an integer number (226008331).

Almost surely, 2^452016661 is an apocalyptic number.

It is an amenable number.

452016661 is a deficient number, since it is larger than the sum of its proper divisors (1).

452016661 is an equidigital number, since it uses as much as digits as its factorization.

452016661 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 452016661 is about 21260.6834556183. The cubic root of 452016661 is about 767.4524572403.

The spelling of 452016661 in words is "four hundred fifty-two million, sixteen thousand, six hundred sixty-one".