16545314664503 has 2 divisors, whose sum is σ = 16545314664504. Its totient is φ = 16545314664502.

The previous prime is 16545314664479. The next prime is 16545314664521. The reversal of 16545314664503 is 30546641354561.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16545314664503 - 2¹⁴ = 16545314648119 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16545314664553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8272657332251 + 8272657332252.

It is an arithmetic number, because the mean of its divisors is an integer number (8272657332252).

Almost surely, 2^{16545314664503} is an apocalyptic number.

16545314664503 is a deficient number, since it is larger than the sum of its proper divisors (1).

16545314664503 is an equidigital number, since it uses as much as digits as its factorization.

16545314664503 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15552000, while the sum is 53.

The spelling of 16545314664503 in words is "sixteen trillion, five hundred forty-five billion, three hundred fourteen million, six hundred sixty-four thousand, five hundred three".