1186040528161 has 2 divisors, whose sum is σ = 1186040528162. Its totient is φ = 1186040528160.

The previous prime is 1186040528041. The next prime is 1186040528171. The reversal of 1186040528161 is 1618250406811.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 705736086561 + 480304441600 = 840081^2 + 693040^2 .

It is a cyclic number.

It is not a de Polignac number, because 1186040528161 - 2¹¹ = 1186040526113 is a prime.

It is not a weakly prime, because it can be changed into another prime (1186040528171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 593020264080 + 593020264081.

It is an arithmetic number, because the mean of its divisors is an integer number (593020264081).

Almost surely, 2^{1186040528161} is an apocalyptic number.

It is an amenable number.

1186040528161 is a deficient number, since it is larger than the sum of its proper divisors (1).

1186040528161 is an equidigital number, since it uses as much as digits as its factorization.

1186040528161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 92160, while the sum is 43.

The spelling of 1186040528161 in words is "one trillion, one hundred eighty-six billion, forty million, five hundred twenty-eight thousand, one hundred sixty-one".