5666636477 has 8 divisors (see below), whose sum is σ = 5958152640. Its totient is φ = 5378882080.

The previous prime is 5666636471. The next prime is 5666636531. The reversal of 5666636477 is 7746366665.

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

It is a cyclic number.

It is not a de Polignac number, because 5666636477 - 2¹⁸ = 5666374333 is a prime.

It is a super-2 number, since 2×5666636477² = 64221537924933943058, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5666636471) 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, 937352 + ... + 943377.

It is an arithmetic number, because the mean of its divisors is an integer number (744769080).

Almost surely, 2^5666636477 is an apocalyptic number.

It is an amenable number.

5666636477 is a deficient number, since it is larger than the sum of its proper divisors (291516163).

5666636477 is a wasteful number, since it uses less digits than its factorization.

5666636477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1880883.

The product of its digits is 22861440, while the sum is 56.

The square root of 5666636477 is about 75277.0647475046. The cubic root of 5666636477 is about 1782.8239143513.

The spelling of 5666636477 in words is "five billion, six hundred sixty-six million, six hundred thirty-six thousand, four hundred seventy-seven".