166112603 has 2 divisors, whose sum is σ = 166112604. Its totient is φ = 166112602.

The previous prime is 166112549. The next prime is 166112629. The reversal of 166112603 is 306211661.

It is an a-pointer prime, because the next prime (166112629) can be obtained adding 166112603 to its sum of digits (26).

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-166112603 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (166112503) 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, 83056301 + 83056302.

It is an arithmetic number, because the mean of its divisors is an integer number (83056302).

Almost surely, 2^166112603 is an apocalyptic number.

166112603 is a deficient number, since it is larger than the sum of its proper divisors (1).

166112603 is an equidigital number, since it uses as much as digits as its factorization.

166112603 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 166112603 is about 12888.4678298082. The cubic root of 166112603 is about 549.7107051606.

The spelling of 166112603 in words is "one hundred sixty-six million, one hundred twelve thousand, six hundred three".