2230165765 has 4 divisors (see below), whose sum is σ = 2676198924. Its totient is φ = 1784132608.

The previous prime is 2230165753. The next prime is 2230165781. The reversal of 2230165765 is 5675610322.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5675610322 = 2 ⋅2837805161.

It can be written as a sum of positive squares in 2 ways, for example, as 1682886529 + 547279236 = 41023^2 + 23394^2 .

It is a cyclic number.

It is not a de Polignac number, because 2230165765 - 2⁵ = 2230165733 is a prime.

It is a Duffinian number.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 223016572 + ... + 223016581.

It is an arithmetic number, because the mean of its divisors is an integer number (669049731).

Almost surely, 2^2230165765 is an apocalyptic number.

It is an amenable number.

2230165765 is a deficient number, since it is larger than the sum of its proper divisors (446033159).

2230165765 is an equidigital number, since it uses as much as digits as its factorization.

2230165765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 446033158.

The product of its (nonzero) digits is 75600, while the sum is 37.

The square root of 2230165765 is about 47224.6309143862. The cubic root of 2230165765 is about 1306.5089272816.

The spelling of 2230165765 in words is "two billion, two hundred thirty million, one hundred sixty-five thousand, seven hundred sixty-five".