1668380204 has 24 divisors (see below), whose sum is σ = 3115768320. Its totient is φ = 778934016.

The previous prime is 1668380167. The next prime is 1668380239. The reversal of 1668380204 is 4020838661.

It is a happy number.

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, 87959 + ... + 105230.

It is an arithmetic number, because the mean of its divisors is an integer number (129823680).

Almost surely, 2^1668380204 is an apocalyptic number.

It is an amenable number.

1668380204 is a deficient number, since it is larger than the sum of its proper divisors (1447388116).

1668380204 is a wasteful number, since it uses less digits than its factorization.

1668380204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193337 (or 193335 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 38.

The square root of 1668380204 is about 40845.8101156043. The cubic root of 1668380204 is about 1186.0372869569.

The spelling of 1668380204 in words is "one billion, six hundred sixty-eight million, three hundred eighty thousand, two hundred four".