1680180223 has 4 divisors (see below), whose sum is σ = 1680266808. Its totient is φ = 1680093640.

The previous prime is 1680180197. The next prime is 1680180247. The reversal of 1680180223 is 3220810861.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 3220810861 = 439 ⋅7336699.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1680180223 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 (1680180263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 753 + ... + 57973.

It is an arithmetic number, because the mean of its divisors is an integer number (420066702).

Almost surely, 2^1680180223 is an apocalyptic number.

1680180223 is a deficient number, since it is larger than the sum of its proper divisors (86585).

1680180223 is an equidigital number, since it uses as much as digits as its factorization.

1680180223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86584.

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 1680180223 is about 40990.0015003659. The cubic root of 1680180223 is about 1188.8268982170.

The spelling of 1680180223 in words is "one billion, six hundred eighty million, one hundred eighty thousand, two hundred twenty-three".