4120634665 has 12 divisors (see below), whose sum is σ = 5752069956. Its totient is φ = 2825577888.

The previous prime is 4120634657. The next prime is 4120634677. The reversal of 4120634665 is 5664360214.

4120634665 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 3094585641 + 1026049024 = 55629^2 + 32032^2 .

It is not a de Polignac number, because 4120634665 - 2³ = 4120634657 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8409214 + ... + 8409703.

It is an arithmetic number, because the mean of its divisors is an integer number (479339163).

Almost surely, 2^4120634665 is an apocalyptic number.

It is an amenable number.

4120634665 is a deficient number, since it is larger than the sum of its proper divisors (1631435291).

4120634665 is a wasteful number, since it uses less digits than its factorization.

4120634665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16818936 (or 16818929 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 37.

The square root of 4120634665 is about 64192.1698106553. The cubic root of 4120634665 is about 1603.2012294814.

Adding to 4120634665 its reverse (5664360214), we get a palindrome (9784994879).

The spelling of 4120634665 in words is "four billion, one hundred twenty million, six hundred thirty-four thousand, six hundred sixty-five".