1680467611166 has 4 divisors (see below), whose sum is σ = 2520701416752. Its totient is φ = 840233805582.

The previous prime is 1680467611129. The next prime is 1680467611219. The reversal of 1680467611166 is 6611167640861.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 420116902790 + ... + 420116902793.

It is an arithmetic number, because the mean of its divisors is an integer number (630175354188).

Almost surely, 2^{1680467611166} is an apocalyptic number.

1680467611166 is a deficient number, since it is larger than the sum of its proper divisors (840233805586).

1680467611166 is an equidigital number, since it uses as much as digits as its factorization.

1680467611166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 840233805585.

The product of its (nonzero) digits is 1741824, while the sum is 53.

The spelling of 1680467611166 in words is "one trillion, six hundred eighty billion, four hundred sixty-seven million, six hundred eleven thousand, one hundred sixty-six".