16655510656065 has 16 divisors (see below), whose sum is σ = 28216394523648. Its totient is φ = 8360413191936.

The previous prime is 16655510656063. The next prime is 16655510656073. The reversal of 16655510656065 is 56065601555661.

It is not a de Polignac number, because 16655510656065 - 2¹ = 16655510656063 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 16655510655996 and 16655510656014.

It is not an unprimeable number, because it can be changed into a prime (16655510656063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32657863777 + ... + 32657864286.

It is an arithmetic number, because the mean of its divisors is an integer number (1763524657728).

Almost surely, 2^{16655510656065} is an apocalyptic number.

16655510656065 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16655510656065 is a deficient number, since it is larger than the sum of its proper divisors (11560883867583).

16655510656065 is a wasteful number, since it uses less digits than its factorization.

16655510656065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65315728088.

The product of its (nonzero) digits is 24300000, while the sum is 57.

The spelling of 16655510656065 in words is "sixteen trillion, six hundred fifty-five billion, five hundred ten million, six hundred fifty-six thousand, sixty-five".