1161606111499 has 2 divisors, whose sum is σ = 1161606111500. Its totient is φ = 1161606111498.

The previous prime is 1161606111469. The next prime is 1161606111511. The reversal of 1161606111499 is 9941116061611.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1161606111499 - 2¹⁷ = 1161605980427 is a prime.

It is not a weakly prime, because it can be changed into another prime (1161606111469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 580803055749 + 580803055750.

It is an arithmetic number, because the mean of its divisors is an integer number (580803055750).

Almost surely, 2^{1161606111499} is an apocalyptic number.

1161606111499 is a deficient number, since it is larger than the sum of its proper divisors (1).

1161606111499 is an equidigital number, since it uses as much as digits as its factorization.

1161606111499 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 69984, while the sum is 46.

The spelling of 1161606111499 in words is "one trillion, one hundred sixty-one billion, six hundred six million, one hundred eleven thousand, four hundred ninety-nine".