7655665568 has 24 divisors (see below), whose sum is σ = 15120574560. Its totient is φ = 3815519680.

The previous prime is 7655665559. The next prime is 7655665571. The reversal of 7655665568 is 8655665567.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 374678 + ... + 394581.

It is an arithmetic number, because the mean of its divisors is an integer number (630023940).

Almost surely, 2^7655665568 is an apocalyptic number.

It is an amenable number.

7655665568 is a deficient number, since it is larger than the sum of its proper divisors (7464908992).

7655665568 is a wasteful number, since it uses less digits than its factorization.

7655665568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 769580 (or 769572 counting only the distinct ones).

The product of its digits is 45360000, while the sum is 59.

The square root of 7655665568 is about 87496.6603248375. The cubic root of 7655665568 is about 1970.8836397630.

Subtracting 7655665568 from its reverse (8655665567), we obtain a palindrome (999999999).

The spelling of 7655665568 in words is "seven billion, six hundred fifty-five million, six hundred sixty-five thousand, five hundred sixty-eight".