5666636473 has 4 divisors (see below), whose sum is σ = 5698293840. Its totient is φ = 5634979108.

The previous prime is 5666636471. The next prime is 5666636531. The reversal of 5666636473 is 3746366665.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 5666636473 - 2¹ = 5666636471 is a prime.

It is a super-2 number, since 2×5666636473² = 64221537834267759458, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5666636473.

It is not an unprimeable number, because it can be changed into a prime (5666636471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15828415 + ... + 15828772.

It is an arithmetic number, because the mean of its divisors is an integer number (1424573460).

Almost surely, 2^5666636473 is an apocalyptic number.

It is an amenable number.

5666636473 is a deficient number, since it is larger than the sum of its proper divisors (31657367).

5666636473 is a wasteful number, since it uses less digits than its factorization.

5666636473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31657366.

The product of its digits is 9797760, while the sum is 52.

The square root of 5666636473 is about 75277.0647209361. The cubic root of 5666636473 is about 1782.8239139318.

It can be divided in two parts, 56666 and 36473, that added together give a palindrome (93139).

The spelling of 5666636473 in words is "five billion, six hundred sixty-six million, six hundred thirty-six thousand, four hundred seventy-three".