6565650065 has 16 divisors (see below), whose sum is σ = 8512148736. Its totient is φ = 4832875200.

The previous prime is 6565650043. The next prime is 6565650073. The reversal of 6565650065 is 5600565656.

It is not a de Polignac number, because 6565650065 - 2¹² = 6565645969 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6565649998 and 6565650025.

It is an unprimeable number.

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, 142181 + ... + 182610.

It is an arithmetic number, because the mean of its divisors is an integer number (532009296).

Almost surely, 2^6565650065 is an apocalyptic number.

6565650065 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

6565650065 is a deficient number, since it is larger than the sum of its proper divisors (1946498671).

6565650065 is a wasteful number, since it uses less digits than its factorization.

6565650065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325120.

The product of its (nonzero) digits is 810000, while the sum is 44.

The square root of 6565650065 is about 81028.6990207791. The cubic root of 6565650065 is about 1872.5176099634.

The spelling of 6565650065 in words is "six billion, five hundred sixty-five million, six hundred fifty thousand, sixty-five".