5666666679 has 6 divisors (see below), whose sum is σ = 8185185216. Its totient is φ = 3777777780.

The previous prime is 5666666657. The next prime is 5666666689. The reversal of 5666666679 is 9766666665.

It is not a de Polignac number, because 5666666679 - 2²⁷ = 5532448951 is a prime.

It is a super-2 number, since 2×5666666679² = 64222222501777778082, which contains 22 as substring.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5666666689) 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 5 ways as a sum of consecutive naturals, for example, 314814807 + ... + 314814824.

It is an arithmetic number, because the mean of its divisors is an integer number (1364197536).

Almost surely, 2^5666666679 is an apocalyptic number.

5666666679 is a deficient number, since it is larger than the sum of its proper divisors (2518518537).

5666666679 is a wasteful number, since it uses less digits than its factorization.

5666666679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 629629637 (or 629629634 counting only the distinct ones).

The product of its digits is 88179840, while the sum is 63.

The square root of 5666666679 is about 75277.2653528275. The cubic root of 5666666679 is about 1782.8270817065.

The spelling of 5666666679 in words is "five billion, six hundred sixty-six million, six hundred sixty-six thousand, six hundred seventy-nine".