2265820165 has 8 divisors (see below), whose sum is σ = 3107410560. Its totient is φ = 1553705232.

The previous prime is 2265820157. The next prime is 2265820181. The reversal of 2265820165 is 5610285622.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2265820165 - 2³ = 2265820157 is a prime.

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 7 ways as a sum of consecutive naturals, for example, 32368825 + ... + 32368894.

It is an arithmetic number, because the mean of its divisors is an integer number (388426320).

Almost surely, 2^2265820165 is an apocalyptic number.

It is an amenable number.

2265820165 is a deficient number, since it is larger than the sum of its proper divisors (841590395).

2265820165 is an equidigital number, since it uses as much as digits as its factorization.

2265820165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64737731.

The product of its (nonzero) digits is 57600, while the sum is 37.

The square root of 2265820165 is about 47600.6319810987. The cubic root of 2265820165 is about 1313.4346798304.

The spelling of 2265820165 in words is "two billion, two hundred sixty-five million, eight hundred twenty thousand, one hundred sixty-five".