2256065767 has 4 divisors (see below), whose sum is σ = 2388775536. Its totient is φ = 2123356000.

The previous prime is 2256065761. The next prime is 2256065807. The reversal of 2256065767 is 7675606522.

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 2256065767 - 2²⁷ = 2121848039 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2256065761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66354859 + ... + 66354892.

It is an arithmetic number, because the mean of its divisors is an integer number (597193884).

Almost surely, 2^2256065767 is an apocalyptic number.

2256065767 is a deficient number, since it is larger than the sum of its proper divisors (132709769).

2256065767 is a wasteful number, since it uses less digits than its factorization.

2256065767 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132709768.

The product of its (nonzero) digits is 1058400, while the sum is 46.

The square root of 2256065767 is about 47498.0606656735. The cubic root of 2256065767 is about 1311.5471817445.

The spelling of 2256065767 in words is "two billion, two hundred fifty-six million, sixty-five thousand, seven hundred sixty-seven".