2265165203 has 4 divisors (see below), whose sum is σ = 2588760240. Its totient is φ = 1941570168.

The previous prime is 2265165193. The next prime is 2265165209. The reversal of 2265165203 is 3025615622.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2265165203 - 2⁶ = 2265165139 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2265165203.

It is not an unprimeable number, because it can be changed into a prime (2265165209) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 161797508 + ... + 161797521.

It is an arithmetic number, because the mean of its divisors is an integer number (647190060).

Almost surely, 2^2265165203 is an apocalyptic number.

2265165203 is a deficient number, since it is larger than the sum of its proper divisors (323595037).

2265165203 is an equidigital number, since it uses as much as digits as its factorization.

2265165203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323595036.

The product of its (nonzero) digits is 21600, while the sum is 32.

The square root of 2265165203 is about 47593.7517222587. The cubic root of 2265165203 is about 1313.3081130475.

The spelling of 2265165203 in words is "two billion, two hundred sixty-five million, one hundred sixty-five thousand, two hundred three".