5656551165 has 20 divisors (see below), whose sum is σ = 10139892444. Its totient is φ = 3016827072.

The previous prime is 5656551163. The next prime is 5656551209. The reversal of 5656551165 is 5611556565.

It can be written as a sum of positive squares in 2 ways, for example, as 1806845049 + 3849706116 = 42507^2 + 62046^2 .

It is not a de Polignac number, because 5656551165 - 2¹ = 5656551163 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 5656551165.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5656551163) by changing a digit.

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 19 ways as a sum of consecutive naturals, for example, 6982992 + ... + 6983801.

Almost surely, 2^5656551165 is an apocalyptic number.

It is an amenable number.

5656551165 is a deficient number, since it is larger than the sum of its proper divisors (4483341279).

5656551165 is a wasteful number, since it uses less digits than its factorization.

5656551165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13966810 (or 13966801 counting only the distinct ones).

The product of its digits is 675000, while the sum is 45.

The square root of 5656551165 is about 75210.0469684736. The cubic root of 5656551165 is about 1781.7656138347.

The spelling of 5656551165 in words is "five billion, six hundred fifty-six million, five hundred fifty-one thousand, one hundred sixty-five".