1668475326 has 32 divisors (see below), whose sum is σ = 3831752448. Its totient is φ = 474445440.

The previous prime is 1668475283. The next prime is 1668475349. The reversal of 1668475326 is 6235748661.

It is a congruent number.

It is an unprimeable number.

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, 85275 + ... + 102998.

It is an arithmetic number, because the mean of its divisors is an integer number (119742264).

Almost surely, 2^1668475326 is an apocalyptic number.

1668475326 is an abundant number, since it is smaller than the sum of its proper divisors (2163277122).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1668475326 is a wasteful number, since it uses less digits than its factorization.

1668475326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188496.

The product of its digits is 1451520, while the sum is 48.

The square root of 1668475326 is about 40846.9745024035. The cubic root of 1668475326 is about 1186.0598270019.

The spelling of 1668475326 in words is "one billion, six hundred sixty-eight million, four hundred seventy-five thousand, three hundred twenty-six".