5666677891 has 16 divisors (see below), whose sum is σ = 6688217088. Its totient is φ = 4698288000.

The previous prime is 5666677889. The next prime is 5666677957. The reversal of 5666677891 is 1987766665.

It is not a de Polignac number, because 5666677891 - 2¹ = 5666677889 is a prime.

It is a super-2 number, since 2×5666677891² = 64222476640696415762, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (5666677801) 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 15 ways as a sum of consecutive naturals, for example, 603156 + ... + 612478.

It is an arithmetic number, because the mean of its divisors is an integer number (418013568).

Almost surely, 2^5666677891 is an apocalyptic number.

5666677891 is a deficient number, since it is larger than the sum of its proper divisors (1021539197).

5666677891 is a wasteful number, since it uses less digits than its factorization.

5666677891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12162.

The product of its digits is 22861440, while the sum is 61.

The square root of 5666677891 is about 75277.3398241463. The cubic root of 5666677891 is about 1782.8282575327.

The spelling of 5666677891 in words is "five billion, six hundred sixty-six million, six hundred seventy-seven thousand, eight hundred ninety-one".