452121130661 has 2 divisors, whose sum is σ = 452121130662. Its totient is φ = 452121130660.

The previous prime is 452121130633. The next prime is 452121130667. The reversal of 452121130661 is 166031121254.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 406450876225 + 45670254436 = 637535^2 + 213706^2 .

It is a cyclic number.

It is not a de Polignac number, because 452121130661 - 2³⁴ = 434941261477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (452121130667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 226060565330 + 226060565331.

It is an arithmetic number, because the mean of its divisors is an integer number (226060565331).

Almost surely, 2^452121130661 is an apocalyptic number.

It is an amenable number.

452121130661 is a deficient number, since it is larger than the sum of its proper divisors (1).

452121130661 is an equidigital number, since it uses as much as digits as its factorization.

452121130661 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 32.

The spelling of 452121130661 in words is "four hundred fifty-two billion, one hundred twenty-one million, one hundred thirty thousand, six hundred sixty-one".