30561235511641 has 2 divisors, whose sum is σ = 30561235511642. Its totient is φ = 30561235511640.

The previous prime is 30561235511629. The next prime is 30561235511647. The reversal of 30561235511641 is 14611553216503.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30329196768025 + 232038743616 = 5507195^2 + 481704^2 .

It is a cyclic number.

It is not a de Polignac number, because 30561235511641 - 2⁹ = 30561235511129 is a prime.

It is not a weakly prime, because it can be changed into another prime (30561235511647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15280617755820 + 15280617755821.

It is an arithmetic number, because the mean of its divisors is an integer number (15280617755821).

Almost surely, 2^{30561235511641} is an apocalyptic number.

It is an amenable number.

30561235511641 is a deficient number, since it is larger than the sum of its proper divisors (1).

30561235511641 is an equidigital number, since it uses as much as digits as its factorization.

30561235511641 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324000, while the sum is 43.

The spelling of 30561235511641 in words is "thirty trillion, five hundred sixty-one billion, two hundred thirty-five million, five hundred eleven thousand, six hundred forty-one".