5666812917 has 8 divisors (see below), whose sum is σ = 7566687840. Its totient is φ = 3772406640.

The previous prime is 5666812859. The next prime is 5666812919. The reversal of 5666812917 is 7192186665.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 5666812917 - 2¹¹ = 5666810869 is a prime.

It is a super-2 number, since 2×5666812917² = 64225537272556097778, which contains 22 as substring.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 5666812917.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5666812919) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1364742 + ... + 1368887.

It is an arithmetic number, because the mean of its divisors is an integer number (945835980).

Almost surely, 2^5666812917 is an apocalyptic number.

It is an amenable number.

5666812917 is a deficient number, since it is larger than the sum of its proper divisors (1899874923).

5666812917 is a wasteful number, since it uses less digits than its factorization.

5666812917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2734323.

The product of its digits is 1088640, while the sum is 51.

The square root of 5666812917 is about 75278.2366756820. The cubic root of 5666812917 is about 1782.8424178726.

The spelling of 5666812917 in words is "five billion, six hundred sixty-six million, eight hundred twelve thousand, nine hundred seventeen".