610351041661 has 2 divisors, whose sum is σ = 610351041662. Its totient is φ = 610351041660.

The previous prime is 610351041593. The next prime is 610351041673. The reversal of 610351041661 is 166140153016.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 346867992025 + 263483049636 = 588955^2 + 513306^2 .

It is a cyclic number.

It is not a de Polignac number, because 610351041661 - 2⁹ = 610351041149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (610351041761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 305175520830 + 305175520831.

It is an arithmetic number, because the mean of its divisors is an integer number (305175520831).

Almost surely, 2^610351041661 is an apocalyptic number.

It is an amenable number.

610351041661 is a deficient number, since it is larger than the sum of its proper divisors (1).

610351041661 is an equidigital number, since it uses as much as digits as its factorization.

610351041661 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12960, while the sum is 34.

Adding to 610351041661 its reverse (166140153016), we get a palindrome (776491194677).

The spelling of 610351041661 in words is "six hundred ten billion, three hundred fifty-one million, forty-one thousand, six hundred sixty-one".