1680366199 has 8 divisors (see below), whose sum is σ = 1698599808. Its totient is φ = 1662179640.

The previous prime is 1680366187. The next prime is 1680366217. The reversal of 1680366199 is 9916630861.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1680366199 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1680366299) 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, 62574 + ... + 85300.

It is an arithmetic number, because the mean of its divisors is an integer number (212324976).

Almost surely, 2^1680366199 is an apocalyptic number.

1680366199 is a deficient number, since it is larger than the sum of its proper divisors (18233609).

1680366199 is a wasteful number, since it uses less digits than its factorization.

1680366199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23525.

The product of its (nonzero) digits is 419904, while the sum is 49.

The square root of 1680366199 is about 40992.2699908166. The cubic root of 1680366199 is about 1188.8707596059.

The spelling of 1680366199 in words is "one billion, six hundred eighty million, three hundred sixty-six thousand, one hundred ninety-nine".