1680109316018 has 16 divisors (see below), whose sum is σ = 2894660707200. Its totient is φ = 716428522656.

The previous prime is 1680109315987. The next prime is 1680109316023. The reversal of 1680109316018 is 8106139010861.

It is a self number, because there is not a number n which added to its sum of digits gives 1680109316018.

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, 301524371 + ... + 301529942.

It is an arithmetic number, because the mean of its divisors is an integer number (180916294200).

Almost surely, 2^{1680109316018} is an apocalyptic number.

1680109316018 is a deficient number, since it is larger than the sum of its proper divisors (1214551391182).

1680109316018 is a wasteful number, since it uses less digits than its factorization.

1680109316018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 603054521.

The product of its (nonzero) digits is 62208, while the sum is 44.

The spelling of 1680109316018 in words is "one trillion, six hundred eighty billion, one hundred nine million, three hundred sixteen thousand, eighteen".