13661734522141 has 2 divisors, whose sum is σ = 13661734522142. Its totient is φ = 13661734522140.

The previous prime is 13661734522081. The next prime is 13661734522151. The reversal of 13661734522141 is 14122543716631.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9233849625625 + 4427884896516 = 3038725^2 + 2104254^2 .

It is a cyclic number.

It is not a de Polignac number, because 13661734522141 - 2¹⁹ = 13661733997853 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13661734522091 and 13661734522100.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13661734522151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6830867261070 + 6830867261071.

It is an arithmetic number, because the mean of its divisors is an integer number (6830867261071).

Almost surely, 2^{13661734522141} is an apocalyptic number.

It is an amenable number.

13661734522141 is a deficient number, since it is larger than the sum of its proper divisors (1).

13661734522141 is an equidigital number, since it uses as much as digits as its factorization.

13661734522141 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 725760, while the sum is 46.

The spelling of 13661734522141 in words is "thirteen trillion, six hundred sixty-one billion, seven hundred thirty-four million, five hundred twenty-two thousand, one hundred forty-one".