1668479603 has 16 divisors (see below), whose sum is σ = 2020207104. Its totient is φ = 1345196160.

The previous prime is 1668479599. The next prime is 1668479611. The reversal of 1668479603 is 3069748661.

It is not a de Polignac number, because 1668479603 - 2² = 1668479599 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1668479633) 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 15 ways as a sum of consecutive naturals, for example, 271976 + ... + 278042.

It is an arithmetic number, because the mean of its divisors is an integer number (126262944).

Almost surely, 2^1668479603 is an apocalyptic number.

1668479603 is a deficient number, since it is larger than the sum of its proper divisors (351727501).

1668479603 is a wasteful number, since it uses less digits than its factorization.

1668479603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8402.

The product of its (nonzero) digits is 1306368, while the sum is 50.

The square root of 1668479603 is about 40847.0268563086. The cubic root of 1668479603 is about 1186.0608404568.

The spelling of 1668479603 in words is "one billion, six hundred sixty-eight million, four hundred seventy-nine thousand, six hundred three".