166313103 has 16 divisors (see below), whose sum is σ = 242504832. Its totient is φ = 100548000.

The previous prime is 166313101. The next prime is 166313107. The reversal of 166313103 is 301313661.

It is not a de Polignac number, because 166313103 - 2¹ = 166313101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166313101) 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 in 15 ways as a sum of consecutive naturals, for example, 7908 + ... + 19878.

It is an arithmetic number, because the mean of its divisors is an integer number (15156552).

Almost surely, 2^166313103 is an apocalyptic number.

166313103 is a deficient number, since it is larger than the sum of its proper divisors (76191729).

166313103 is a wasteful number, since it uses less digits than its factorization.

166313103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12406.

The product of its (nonzero) digits is 972, while the sum is 24.

The square root of 166313103 is about 12896.2437554507. The cubic root of 166313103 is about 549.9317854793.

Adding to 166313103 its reverse (301313661), we get a palindrome (467626764).

The spelling of 166313103 in words is "one hundred sixty-six million, three hundred thirteen thousand, one hundred three".