2256065432165 has 8 divisors (see below), whose sum is σ = 2758359245688. Its totient is φ = 1770798527680.

The previous prime is 2256065432147. The next prime is 2256065432167. The reversal of 2256065432165 is 5612345606522.

2256065432165 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 321827020804 + 1934238411361 = 567298^2 + 1390769^2 .

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

It is not a de Polignac number, because 2256065432165 - 2¹⁰ = 2256065431141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2256065432167) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4256726966 + ... + 4256727495.

It is an arithmetic number, because the mean of its divisors is an integer number (344794905711).

Almost surely, 2^{2256065432165} is an apocalyptic number.

It is an amenable number.

2256065432165 is a deficient number, since it is larger than the sum of its proper divisors (502293813523).

2256065432165 is an equidigital number, since it uses as much as digits as its factorization.

2256065432165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8513454519.

The product of its (nonzero) digits is 2592000, while the sum is 47.

The spelling of 2256065432165 in words is "two trillion, two hundred fifty-six billion, sixty-five million, four hundred thirty-two thousand, one hundred sixty-five".