4611303535561 has 2 divisors, whose sum is σ = 4611303535562. Its totient is φ = 4611303535560.

The previous prime is 4611303535513. The next prime is 4611303535651. The reversal of 4611303535561 is 1655353031164.

It is a happy number.

Together with next prime (4611303535651) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2342231289225 + 2269072246336 = 1530435^2 + 1506344^2 .

It is a cyclic number.

It is not a de Polignac number, because 4611303535561 - 2⁹ = 4611303535049 is a prime.

It is not a weakly prime, because it can be changed into another prime (4611303536561) 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, 2305651767780 + 2305651767781.

It is an arithmetic number, because the mean of its divisors is an integer number (2305651767781).

Almost surely, 2^{4611303535561} is an apocalyptic number.

It is an amenable number.

4611303535561 is a deficient number, since it is larger than the sum of its proper divisors (1).

4611303535561 is an equidigital number, since it uses as much as digits as its factorization.

4611303535561 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 486000, while the sum is 43.

The spelling of 4611303535561 in words is "four trillion, six hundred eleven billion, three hundred three million, five hundred thirty-five thousand, five hundred sixty-one".