1668180003 has 32 divisors (see below), whose sum is σ = 2616422400. Its totient is φ = 925737120.

The previous prime is 1668179987. The next prime is 1668180049. The reversal of 1668180003 is 3000818661.

It is not a de Polignac number, because 1668180003 - 2⁴ = 1668179987 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1668180103) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 91548 + ... + 108246.

It is an arithmetic number, because the mean of its divisors is an integer number (81763200).

Almost surely, 2^1668180003 is an apocalyptic number.

1668180003 is a deficient number, since it is larger than the sum of its proper divisors (948242397).

1668180003 is a wasteful number, since it uses less digits than its factorization.

1668180003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16847.

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 1668180003 is about 40843.3593500828. The cubic root of 1668180003 is about 1185.9898446635.

Adding to 1668180003 its reverse (3000818661), we get a palindrome (4668998664).

The spelling of 1668180003 in words is "one billion, six hundred sixty-eight million, one hundred eighty thousand, three".