1663980204 has 48 divisors (see below), whose sum is σ = 3958246656. Its totient is φ = 543912000.

The previous prime is 1663980193. The next prime is 1663980251. The reversal of 1663980204 is 4020893661.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 250729 + ... + 257279.

It is an arithmetic number, because the mean of its divisors is an integer number (82463472).

Almost surely, 2^1663980204 is an apocalyptic number.

It is an amenable number.

1663980204 is an abundant number, since it is smaller than the sum of its proper divisors (2294266452).

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

1663980204 is a wasteful number, since it uses less digits than its factorization.

1663980204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6966 (or 6964 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 39.

The square root of 1663980204 is about 40791.9134633324. The cubic root of 1663980204 is about 1184.9937281799.

The spelling of 1663980204 in words is "one billion, six hundred sixty-three million, nine hundred eighty thousand, two hundred four".