435203886420661 has 2 divisors, whose sum is σ = 435203886420662. Its totient is φ = 435203886420660.

The previous prime is 435203886420647. The next prime is 435203886420671. The reversal of 435203886420661 is 166024688302534.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 229031448426225 + 206172437994436 = 15133785^2 + 14358706^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-435203886420661 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 435203886420596 and 435203886420605.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (435203886420671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 217601943210330 + 217601943210331.

It is an arithmetic number, because the mean of its divisors is an integer number (217601943210331).

Almost surely, 2^{435203886420661} is an apocalyptic number.

It is an amenable number.

435203886420661 is a deficient number, since it is larger than the sum of its proper divisors (1).

435203886420661 is an equidigital number, since it uses as much as digits as its factorization.

435203886420661 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 39813120, while the sum is 58.

The spelling of 435203886420661 in words is "four hundred thirty-five trillion, two hundred three billion, eight hundred eighty-six million, four hundred twenty thousand, six hundred sixty-one".