17561362241 has 2 divisors, whose sum is σ = 17561362242. Its totient is φ = 17561362240.

The previous prime is 17561362229. The next prime is 17561362279. The reversal of 17561362241 is 14226316571.

It is an a-pointer prime, because the next prime (17561362279) can be obtained adding 17561362241 to its sum of digits (38).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14035377841 + 3525984400 = 118471^2 + 59380^2 .

It is a cyclic number.

It is not a de Polignac number, because 17561362241 - 2²⁶ = 17494253377 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 17561362195 and 17561362204.

It is not a weakly prime, because it can be changed into another prime (17561364241) 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, 8780681120 + 8780681121.

It is an arithmetic number, because the mean of its divisors is an integer number (8780681121).

Almost surely, 2^17561362241 is an apocalyptic number.

It is an amenable number.

17561362241 is a deficient number, since it is larger than the sum of its proper divisors (1).

17561362241 is an equidigital number, since it uses as much as digits as its factorization.

17561362241 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 60480, while the sum is 38.

The spelling of 17561362241 in words is "seventeen billion, five hundred sixty-one million, three hundred sixty-two thousand, two hundred forty-one".