5655665565 has 64 divisors (see below), whose sum is σ = 10992844800. Its totient is φ = 2736072000.

The previous prime is 5655665557. The next prime is 5655665597.

5655665565 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 5655665565 - 2³ = 5655665557 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 707340 + ... + 715290.

It is an arithmetic number, because the mean of its divisors is an integer number (171763200).

Almost surely, 2^5655665565 is an apocalyptic number.

5655665565 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

5655665565 is a deficient number, since it is larger than the sum of its proper divisors (5337179235).

5655665565 is a wasteful number, since it uses less digits than its factorization.

5655665565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8455 (or 8449 counting only the distinct ones).

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

The square root of 5655665565 is about 75204.1592267343. The cubic root of 5655665565 is about 1781.6726234868.

The spelling of 5655665565 in words is "five billion, six hundred fifty-five million, six hundred sixty-five thousand, five hundred sixty-five".