1683533668 has 12 divisors (see below), whose sum is σ = 3074279040. Its totient is φ = 805168232.

The previous prime is 1683533659. The next prime is 1683533669. The reversal of 1683533668 is 8663353861.

It is a super-2 number, since 2×1683533668² = 5668571222579068448, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1683533669) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9149548 + ... + 9149731.

It is an arithmetic number, because the mean of its divisors is an integer number (256189920).

Almost surely, 2^1683533668 is an apocalyptic number.

It is an amenable number.

1683533668 is a deficient number, since it is larger than the sum of its proper divisors (1390745372).

1683533668 is a wasteful number, since it uses less digits than its factorization.

1683533668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18299306 (or 18299304 counting only the distinct ones).

The product of its digits is 1866240, while the sum is 49.

The square root of 1683533668 is about 41030.8867561987. The cubic root of 1683533668 is about 1189.6172928411.

The spelling of 1683533668 in words is "one billion, six hundred eighty-three million, five hundred thirty-three thousand, six hundred sixty-eight".