1668410850 has 96 divisors (see below), whose sum is σ = 4288386240. Its totient is φ = 428995840.

The previous prime is 1668410801. The next prime is 1668410851. The reversal of 1668410850 is 580148661.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1668410799 and 1668410808.

It is not an unprimeable number, because it can be changed into a prime (1668410851) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 467272 + ... + 470828.

It is an arithmetic number, because the mean of its divisors is an integer number (44670690).

Almost surely, 2^1668410850 is an apocalyptic number.

1668410850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1668410850, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2144193120).

1668410850 is an abundant number, since it is smaller than the sum of its proper divisors (2619975390).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1668410850 is a wasteful number, since it uses less digits than its factorization.

1668410850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3684 (or 3679 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 39.

The square root of 1668410850 is about 40846.1852563982. The cubic root of 1668410850 is about 1186.0445489059.

The spelling of 1668410850 in words is "one billion, six hundred sixty-eight million, four hundred ten thousand, eight hundred fifty".