6560655155665 has 16 divisors (see below), whose sum is σ = 8509670701056. Its totient is φ = 4826914027200.

The previous prime is 6560655155657. The next prime is 6560655155699. The reversal of 6560655155665 is 5665515560656.

It is a happy number.

It is not a de Polignac number, because 6560655155665 - 2³ = 6560655155657 is a prime.

It is a Duffinian number.

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, 186205921 + ... + 186241150.

It is an arithmetic number, because the mean of its divisors is an integer number (531854418816).

Almost surely, 2^{6560655155665} is an apocalyptic number.

6560655155665 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

6560655155665 is a deficient number, since it is larger than the sum of its proper divisors (1949015545391).

6560655155665 is a wasteful number, since it uses less digits than its factorization.

6560655155665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 372447360.

The product of its (nonzero) digits is 121500000, while the sum is 61.

The spelling of 6560655155665 in words is "six trillion, five hundred sixty billion, six hundred fifty-five million, one hundred fifty-five thousand, six hundred sixty-five".