1668373066 has 16 divisors (see below), whose sum is σ = 2646298368. Its totient is φ = 787586400.

The previous prime is 1668373043. The next prime is 1668373093. The reversal of 1668373066 is 6603738661.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 325620 + ... + 330703.

It is an arithmetic number, because the mean of its divisors is an integer number (165393648).

Almost surely, 2^1668373066 is an apocalyptic number.

1668373066 is a deficient number, since it is larger than the sum of its proper divisors (977925302).

1668373066 is a wasteful number, since it uses less digits than its factorization.

1668373066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 656397.

The product of its (nonzero) digits is 653184, while the sum is 46.

The square root of 1668373066 is about 40845.7227381277. The cubic root of 1668373066 is about 1186.0355955067.

The spelling of 1668373066 in words is "one billion, six hundred sixty-eight million, three hundred seventy-three thousand, sixty-six".