2265310340265 has 16 divisors (see below), whose sum is σ = 4142281765248. Its totient is φ = 1035570441216.

The previous prime is 2265310340263. The next prime is 2265310340269. The reversal of 2265310340265 is 5620430135622.

It is not a de Polignac number, because 2265310340265 - 2¹ = 2265310340263 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2265310340263) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 10787191992 + ... + 10787192201.

It is an arithmetic number, because the mean of its divisors is an integer number (258892610328).

Almost surely, 2^{2265310340265} is an apocalyptic number.

It is an amenable number.

2265310340265 is a deficient number, since it is larger than the sum of its proper divisors (1876971424983).

2265310340265 is a wasteful number, since it uses less digits than its factorization.

2265310340265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21574384208.

The product of its (nonzero) digits is 259200, while the sum is 39.

Adding to 2265310340265 its reverse (5620430135622), we get a palindrome (7885740475887).

The spelling of 2265310340265 in words is "two trillion, two hundred sixty-five billion, three hundred ten million, three hundred forty thousand, two hundred sixty-five".