2565536716 has 24 divisors (see below), whose sum is σ = 4540811184. Its totient is φ = 1268245440.

The previous prime is 2565536663. The next prime is 2565536717. The reversal of 2565536716 is 6176355652.

It is a super-2 number, since 2×2565536716² = 13163957282288129312, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2565536717) 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 7 ways as a sum of consecutive naturals, for example, 115011 + ... + 135493.

It is an arithmetic number, because the mean of its divisors is an integer number (189200466).

Almost surely, 2^2565536716 is an apocalyptic number.

It is an amenable number.

2565536716 is a deficient number, since it is larger than the sum of its proper divisors (1975274468).

2565536716 is a wasteful number, since it uses less digits than its factorization.

2565536716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20841 (or 20839 counting only the distinct ones).

The product of its digits is 1134000, while the sum is 46.

The square root of 2565536716 is about 50651.1274899187. The cubic root of 2565536716 is about 1368.9662608717.

The spelling of 2565536716 in words is "two billion, five hundred sixty-five million, five hundred thirty-six thousand, seven hundred sixteen".