166010503 has 2 divisors, whose sum is σ = 166010504. Its totient is φ = 166010502.

The previous prime is 166010497. The next prime is 166010519. The reversal of 166010503 is 305010661.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-166010503 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (166010563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83005251 + 83005252.

It is an arithmetic number, because the mean of its divisors is an integer number (83005252).

Almost surely, 2^166010503 is an apocalyptic number.

166010503 is a deficient number, since it is larger than the sum of its proper divisors (1).

166010503 is an equidigital number, since it uses as much as digits as its factorization.

166010503 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 166010503 is about 12884.5063157267. The cubic root of 166010503 is about 549.5980567423.

The spelling of 166010503 in words is "one hundred sixty-six million, ten thousand, five hundred three".