16545054640111 has 2 divisors, whose sum is σ = 16545054640112. Its totient is φ = 16545054640110.

The previous prime is 16545054640021. The next prime is 16545054640133. The reversal of 16545054640111 is 11104645054561.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16545054640111 - 2¹⁹ = 16545054115823 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16545054641111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8272527320055 + 8272527320056.

It is an arithmetic number, because the mean of its divisors is an integer number (8272527320056).

Almost surely, 2^{16545054640111} is an apocalyptic number.

16545054640111 is a deficient number, since it is larger than the sum of its proper divisors (1).

16545054640111 is an equidigital number, since it uses as much as digits as its factorization.

16545054640111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288000, while the sum is 43.

Adding to 16545054640111 its reverse (11104645054561), we get a palindrome (27649699694672).

The spelling of 16545054640111 in words is "sixteen trillion, five hundred forty-five billion, fifty-four million, six hundred forty thousand, one hundred eleven".