6278067666 has 96 divisors (see below), whose sum is σ = 16327059840. Its totient is φ = 1722373632.

The previous prime is 6278067637. The next prime is 6278067667. The reversal of 6278067666 is 6667608726.

It is a super-3 number, since 3×6278067666³ (a number of 30 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (6278067667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 34051 + ... + 117113.

It is an arithmetic number, because the mean of its divisors is an integer number (170073540).

Almost surely, 2^6278067666 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6278067666, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8163529920).

6278067666 is an abundant number, since it is smaller than the sum of its proper divisors (10048992174).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6278067666 is a wasteful number, since it uses less digits than its factorization.

6278067666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83120 (or 83117 counting only the distinct ones).

The product of its (nonzero) digits is 6096384, while the sum is 54.

The square root of 6278067666 is about 79234.2581589555. The cubic root of 6278067666 is about 1844.7690230162.

The spelling of 6278067666 in words is "six billion, two hundred seventy-eight million, sixty-seven thousand, six hundred sixty-six".