5811383666 has 24 divisors (see below), whose sum is σ = 10101837456. Its totient is φ = 2486150720.

The previous prime is 5811383663. The next prime is 5811383671. The reversal of 5811383666 is 6663831185.

It is a super-2 number, since 2×5811383666² = 67544360226903199112, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 5811383666.

It is not an unprimeable number, because it can be changed into a prime (5811383663) 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 11 ways as a sum of consecutive naturals, for example, 450656 + ... + 463371.

It is an arithmetic number, because the mean of its divisors is an integer number (420909894).

Almost surely, 2^5811383666 is an apocalyptic number.

5811383666 is a deficient number, since it is larger than the sum of its proper divisors (4290453790).

5811383666 is a wasteful number, since it uses less digits than its factorization.

5811383666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 914074 (or 914057 counting only the distinct ones).

The product of its digits is 622080, while the sum is 47.

The square root of 5811383666 is about 76232.4318515420. The cubic root of 5811383666 is about 1797.8764737667.

The spelling of 5811383666 in words is "five billion, eight hundred eleven million, three hundred eighty-three thousand, six hundred sixty-six".