602110661 has 2 divisors, whose sum is σ = 602110662. Its totient is φ = 602110660.

The previous prime is 602110637. The next prime is 602110681. The reversal of 602110661 is 166011206.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 399760036 + 202350625 = 19994^2 + 14225^2 .

It is a cyclic number.

It is not a de Polignac number, because 602110661 - 2¹⁴ = 602094277 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (602110681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 301055330 + 301055331.

It is an arithmetic number, because the mean of its divisors is an integer number (301055331).

Almost surely, 2^602110661 is an apocalyptic number.

It is an amenable number.

602110661 is a deficient number, since it is larger than the sum of its proper divisors (1).

602110661 is an equidigital number, since it uses as much as digits as its factorization.

602110661 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 602110661 is about 24537.9432919713. The cubic root of 602110661 is about 844.4205081120.

Adding to 602110661 its reverse (166011206), we get a palindrome (768121867).

The spelling of 602110661 in words is "six hundred two million, one hundred ten thousand, six hundred sixty-one".