166160503 has 2 divisors, whose sum is σ = 166160504. Its totient is φ = 166160502.

The previous prime is 166160447. The next prime is 166160537. The reversal of 166160503 is 305061661.

It is a strong prime.

It is an emirp because it is prime and its reverse (305061661) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-166160503 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (166160543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83080251 + 83080252.

It is an arithmetic number, because the mean of its divisors is an integer number (83080252).

Almost surely, 2^166160503 is an apocalyptic number.

166160503 is a deficient number, since it is larger than the sum of its proper divisors (1).

166160503 is an equidigital number, since it uses as much as digits as its factorization.

166160503 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 166160503 is about 12890.3259462280. The cubic root of 166160503 is about 549.7635380217.

The spelling of 166160503 in words is "one hundred sixty-six million, one hundred sixty thousand, five hundred three".