5043655665 has 12 divisors (see below), whose sum is σ = 8742336564. Its totient is φ = 2689949664.

The previous prime is 5043655663. The next prime is 5043655691. The reversal of 5043655665 is 5665563405.

5043655665 is a `hidden beast` number, since 5 + 0 + 4 + 36 + 556 + 65 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 3453560289 + 1590095376 = 58767^2 + 39876^2 .

It is not a de Polignac number, because 5043655665 - 2¹ = 5043655663 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 112081237 = 5043655665 / (5 + 0 + 4 + 3 + 6 + 5 + 5 + 6 + 6 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 5043655665.

It is not an unprimeable number, because it can be changed into a prime (5043655663) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 56040574 + ... + 56040663.

It is an arithmetic number, because the mean of its divisors is an integer number (728528047).

Almost surely, 2^5043655665 is an apocalyptic number.

It is an amenable number.

5043655665 is a deficient number, since it is larger than the sum of its proper divisors (3698680899).

5043655665 is a wasteful number, since it uses less digits than its factorization.

5043655665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112081248 (or 112081245 counting only the distinct ones).

The product of its (nonzero) digits is 1620000, while the sum is 45.

The square root of 5043655665 is about 71018.6994037486. The cubic root of 5043655665 is about 1714.9382083265.

The spelling of 5043655665 in words is "five billion, forty-three million, six hundred fifty-five thousand, six hundred sixty-five".