668147103 has 48 divisors (see below), whose sum is σ = 1125260640. Its totient is φ = 389453184.

The previous prime is 668147101. The next prime is 668147131. The reversal of 668147103 is 301741866.

It is not a de Polignac number, because 668147103 - 2¹ = 668147101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (668147101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 124075 + ... + 129347.

It is an arithmetic number, because the mean of its divisors is an integer number (23442930).

Almost surely, 2^668147103 is an apocalyptic number.

668147103 is a deficient number, since it is larger than the sum of its proper divisors (457113537).

668147103 is a wasteful number, since it uses less digits than its factorization.

668147103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5333 (or 5308 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 668147103 is about 25848.5416029609. The cubic root of 668147103 is about 874.2266268012.

Adding to 668147103 its reverse (301741866), we get a palindrome (969888969).

The spelling of 668147103 in words is "six hundred sixty-eight million, one hundred forty-seven thousand, one hundred three".