5666677889 has 2 divisors, whose sum is σ = 5666677890.
Its totient is φ = 5666677888.
The previous prime is 5666677883. The next prime is 5666677957. The reversal of 5666677889 is 9887766665.
It is an a-pointer prime, because the next prime (5666677957) can be obtained adding 5666677889 to its sum of digits (68).
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 4824691600 + 841986289 = 69460^2 + 29017^2
It is a cyclic number.
It is not a de Polignac number, because 5666677889 - 216 = 5666612353 is a prime.
It is a super-2 number, since 2×56666778892 = 64222476595362992642, which contains 22 as substring.
It is a plaindrome in base 10.
It is not a weakly prime, because it can be changed into another prime (5666677883) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2833338944 + 2833338945.
It is an arithmetic number, because the mean of its divisors is an integer number (2833338945).
Almost surely, 25666677889 is an apocalyptic number.
It is an amenable number.
5666677889 is a deficient number, since it is larger than the sum of its proper divisors (1).
5666677889 is an equidigital number, since it uses as much as digits as its factorization.
5666677889 is an evil number, because the sum of its binary digits is even.
The product of its digits is 182891520, while the sum is 68.
The square root of 5666677889 is about 75277.3398108621.
The cubic root of 5666677889 is about 1782.8282573229.
The spelling of 5666677889 in words is "five billion, six hundred sixty-six million, six hundred seventy-seven thousand, eight hundred eighty-nine".