10010165665 has 4 divisors (see below), whose sum is σ = 12012198804. Its totient is φ = 8008132528.

The previous prime is 10010165663. The next prime is 10010165687. The reversal of 10010165665 is 56656101001.

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 3067276689 + 6942888976 = 55383^2 + 83324^2 .

It is a cyclic number.

It is not a de Polignac number, because 10010165665 - 2¹ = 10010165663 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10010165663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1001016562 + ... + 1001016571.

It is an arithmetic number, because the mean of its divisors is an integer number (3003049701).

Almost surely, 2^10010165665 is an apocalyptic number.

It is an amenable number.

10010165665 is a deficient number, since it is larger than the sum of its proper divisors (2002033139).

10010165665 is an equidigital number, since it uses as much as digits as its factorization.

10010165665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2002033138.

The product of its (nonzero) digits is 5400, while the sum is 31.

Adding to 10010165665 its reverse (56656101001), we get a palindrome (66666266666).

The spelling of 10010165665 in words is "ten billion, ten million, one hundred sixty-five thousand, six hundred sixty-five".