2168800345 has 4 divisors (see below), whose sum is σ = 2602560420. Its totient is φ = 1735040272.

The previous prime is 2168800321. The next prime is 2168800363. The reversal of 2168800345 is 5430088612.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1518193296 + 650607049 = 38964^2 + 25507^2 .

It is a cyclic number.

It is not a de Polignac number, because 2168800345 - 2⁷ = 2168800217 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 216880030 + ... + 216880039.

It is an arithmetic number, because the mean of its divisors is an integer number (650640105).

Almost surely, 2^2168800345 is an apocalyptic number.

It is an amenable number.

2168800345 is a deficient number, since it is larger than the sum of its proper divisors (433760075).

2168800345 is an equidigital number, since it uses as much as digits as its factorization.

2168800345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 433760074.

The product of its (nonzero) digits is 46080, while the sum is 37.

The square root of 2168800345 is about 46570.3805545971. The cubic root of 2168800345 is about 1294.4139693740.

Adding to 2168800345 its reverse (5430088612), we get a palindrome (7598888957).

The spelling of 2168800345 in words is "two billion, one hundred sixty-eight million, eight hundred thousand, three hundred forty-five".