181711045045099 has 2 divisors, whose sum is σ = 181711045045100. Its totient is φ = 181711045045098.

The previous prime is 181711045045037. The next prime is 181711045045133. The reversal of 181711045045099 is 990540540117181.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-181711045045099 is a prime.

It is not a weakly prime, because it can be changed into another prime (181711045045199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 90855522522549 + 90855522522550.

It is an arithmetic number, because the mean of its divisors is an integer number (90855522522550).

Almost surely, 2^{181711045045099} is an apocalyptic number.

181711045045099 is a deficient number, since it is larger than the sum of its proper divisors (1).

181711045045099 is an equidigital number, since it uses as much as digits as its factorization.

181711045045099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1814400, while the sum is 55.

The spelling of 181711045045099 in words is "one hundred eighty-one trillion, seven hundred eleven billion, forty-five million, forty-five thousand, ninety-nine".