1680143568 has 40 divisors (see below), whose sum is σ = 4347200928. Its totient is φ = 559166592.

The previous prime is 1680143539. The next prime is 1680143581. The reversal of 1680143568 is 8653410861.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3646 + ... + 58082.

Almost surely, 2^1680143568 is an apocalyptic number.

It is an amenable number.

1680143568 is an abundant number, since it is smaller than the sum of its proper divisors (2667057360).

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

1680143568 is a wasteful number, since it uses less digits than its factorization.

1680143568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55091 (or 55085 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 42.

The square root of 1680143568 is about 40989.5543766946. The cubic root of 1680143568 is about 1188.8182529605.

The spelling of 1680143568 in words is "one billion, six hundred eighty million, one hundred forty-three thousand, five hundred sixty-eight".