2256312201065 has 16 divisors (see below), whose sum is σ = 2915928816528. Its totient is φ = 1666154520576.

The previous prime is 2256312201053. The next prime is 2256312201071. The reversal of 2256312201065 is 5601022136522.

It can be written as a sum of positive squares in 8 ways, for example, as 1663986481936 + 592325719129 = 1289956^2 + 769627^2 .

It is not a de Polignac number, because 2256312201065 - 2¹⁸ = 2256311938921 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2042249 + ... + 2946761.

It is an arithmetic number, because the mean of its divisors is an integer number (182245551033).

Almost surely, 2^{2256312201065} is an apocalyptic number.

It is an amenable number.

2256312201065 is a deficient number, since it is larger than the sum of its proper divisors (659616615463).

2256312201065 is a wasteful number, since it uses less digits than its factorization.

2256312201065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 942908.

The product of its (nonzero) digits is 43200, while the sum is 35.

Adding to 2256312201065 its reverse (5601022136522), we get a palindrome (7857334337587).

The spelling of 2256312201065 in words is "two trillion, two hundred fifty-six billion, three hundred twelve million, two hundred one thousand, sixty-five".