65565055665 has 16 divisors (see below), whose sum is σ = 116560099200. Its totient is φ = 34968029616.

The previous prime is 65565055579. The next prime is 65565055753. The reversal of 65565055665 is 56655056556.

It is not a de Polignac number, because 65565055665 - 2⁷ = 65565055537 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, 242833405 + ... + 242833674.

It is an arithmetic number, because the mean of its divisors is an integer number (7285006200).

Almost surely, 2^65565055665 is an apocalyptic number.

It is an amenable number.

65565055665 is a deficient number, since it is larger than the sum of its proper divisors (50995043535).

65565055665 is a wasteful number, since it uses less digits than its factorization.

65565055665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 485667093 (or 485667087 counting only the distinct ones).

The product of its (nonzero) digits is 20250000, while the sum is 54.

The spelling of 65565055665 in words is "sixty-five billion, five hundred sixty-five million, fifty-five thousand, six hundred sixty-five".