2110066505 has 4 divisors (see below), whose sum is σ = 2532079812. Its totient is φ = 1688053200.

The previous prime is 2110066487. The next prime is 2110066507. The reversal of 2110066505 is 5056600112.

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 1251107641 + 858958864 = 35371^2 + 29308^2 .

It is not a de Polignac number, because 2110066505 - 2⁸ = 2110066249 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2110066507) 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, 211006646 + ... + 211006655.

It is an arithmetic number, because the mean of its divisors is an integer number (633019953).

Almost surely, 2^2110066505 is an apocalyptic number.

It is an amenable number.

2110066505 is a deficient number, since it is larger than the sum of its proper divisors (422013307).

2110066505 is an equidigital number, since it uses as much as digits as its factorization.

2110066505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422013306.

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 2110066505 is about 45935.4602132165. The cubic root of 2110066505 is about 1282.6220877382.

Adding to 2110066505 its reverse (5056600112), we get a palindrome (7166666617).

The spelling of 2110066505 in words is "two billion, one hundred ten million, sixty-six thousand, five hundred five".