2034320665 has 16 divisors (see below), whose sum is σ = 2668212288. Its totient is φ = 1479842496.

The previous prime is 2034320647. The next prime is 2034320699. The reversal of 2034320665 is 5660234302.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2034320665 - 2¹⁵ = 2034287897 is a prime.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 229207 + ... + 237916.

It is an arithmetic number, because the mean of its divisors is an integer number (166763268).

Almost surely, 2^2034320665 is an apocalyptic number.

It is an amenable number.

2034320665 is a deficient number, since it is larger than the sum of its proper divisors (633891623).

2034320665 is a wasteful number, since it uses less digits than its factorization.

2034320665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 467208.

The product of its (nonzero) digits is 25920, while the sum is 31.

The square root of 2034320665 is about 45103.4440480990. Note that the first 3 decimals coincide. The cubic root of 2034320665 is about 1267.0871023145.

Adding to 2034320665 its reverse (5660234302), we get a palindrome (7694554967).

The spelling of 2034320665 in words is "two billion, thirty-four million, three hundred twenty thousand, six hundred sixty-five".