1680080960009 has 8 divisors (see below), whose sum is σ = 1691589553800. Its totient is φ = 1668575471616.

The previous prime is 1680080959987. The next prime is 1680080960017. The reversal of 1680080960009 is 9000690800861.

It can be written as a sum of positive squares in 4 ways, for example, as 206838492025 + 1473242467984 = 454795^2 + 1213772^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1680080960009 - 2¹² = 1680080955913 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1680080960059) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 314627 + ... + 1859879.

It is an arithmetic number, because the mean of its divisors is an integer number (211448694225).

Almost surely, 2^{1680080960009} is an apocalyptic number.

It is an amenable number.

1680080960009 is a deficient number, since it is larger than the sum of its proper divisors (11508593791).

1680080960009 is a wasteful number, since it uses less digits than its factorization.

1680080960009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1552699.

The product of its (nonzero) digits is 186624, while the sum is 47.

The spelling of 1680080960009 in words is "one trillion, six hundred eighty billion, eighty million, nine hundred sixty thousand, nine".