1683831666 has 24 divisors (see below), whose sum is σ = 3674542032. Its totient is φ = 510151000.

The previous prime is 1683831649. The next prime is 1683831689. The reversal of 1683831666 is 6661383861.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 330841 + ... + 335891.

It is an arithmetic number, because the mean of its divisors is an integer number (153105918).

Almost surely, 2^1683831666 is an apocalyptic number.

1683831666 is an abundant number, since it is smaller than the sum of its proper divisors (1990710366).

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

1683831666 is an frugal number, since it uses more digits than its factorization.

1683831666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10118 (or 5067 counting only the distinct ones).

The product of its digits is 746496, while the sum is 48.

The square root of 1683831666 is about 41034.5179818162. The cubic root of 1683831666 is about 1189.6874790742.

The spelling of 1683831666 in words is "one billion, six hundred eighty-three million, eight hundred thirty-one thousand, six hundred sixty-six".