17561060132761 has 2 divisors, whose sum is σ = 17561060132762. Its totient is φ = 17561060132760.

The previous prime is 17561060132729. The next prime is 17561060132797. The reversal of 17561060132761 is 16723106016571.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14954269055625 + 2606791077136 = 3867075^2 + 1614556^2 .

It is a cyclic number.

It is not a de Polignac number, because 17561060132761 - 2⁵ = 17561060132729 is a prime.

It is not a weakly prime, because it can be changed into another prime (17561060142761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8780530066380 + 8780530066381.

It is an arithmetic number, because the mean of its divisors is an integer number (8780530066381).

Almost surely, 2^{17561060132761} is an apocalyptic number.

It is an amenable number.

17561060132761 is a deficient number, since it is larger than the sum of its proper divisors (1).

17561060132761 is an equidigital number, since it uses as much as digits as its factorization.

17561060132761 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 317520, while the sum is 46.

The spelling of 17561060132761 in words is "seventeen trillion, five hundred sixty-one billion, sixty million, one hundred thirty-two thousand, seven hundred sixty-one".