1680111110 has 8 divisors (see below), whose sum is σ = 3024200016. Its totient is φ = 672044440.

The previous prime is 1680111089. The next prime is 1680111131. The reversal of 1680111110 is 111110861.

It is an interprime number because it is at equal distance from previous prime (1680111089) and next prime (1680111131).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84005546 + ... + 84005565.

It is an arithmetic number, because the mean of its divisors is an integer number (378025002).

Almost surely, 2^1680111110 is an apocalyptic number.

1680111110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1680111110 is a deficient number, since it is larger than the sum of its proper divisors (1344088906).

1680111110 is a wasteful number, since it uses less digits than its factorization.

1680111110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168011118.

The product of its (nonzero) digits is 48, while the sum is 20.

The square root of 1680111110 is about 40989.1584446424. The cubic root of 1680111110 is about 1188.8105974816.

Adding to 1680111110 its reverse (111110861), we get a palindrome (1791221971).

The spelling of 1680111110 in words is "one billion, six hundred eighty million, one hundred eleven thousand, one hundred ten".