2678006066 has 8 divisors (see below), whose sum is σ = 4020313500. Its totient is φ = 1337901568.

The previous prime is 2678006063. The next prime is 2678006087. The reversal of 2678006066 is 6606008762.

It can be written as a sum of positive squares in 2 ways, for example, as 2677545025 + 461041 = 51745^2 + 679^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2678006063) 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 3 ways as a sum of consecutive naturals, for example, 547691 + ... + 552558.

Almost surely, 2^2678006066 is an apocalyptic number.

2678006066 is a deficient number, since it is larger than the sum of its proper divisors (1342307434).

2678006066 is a wasteful number, since it uses less digits than its factorization.

2678006066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1101468.

The product of its (nonzero) digits is 145152, while the sum is 41.

The square root of 2678006066 is about 51749.4547410888. The cubic root of 2678006066 is about 1388.6853443023.

The spelling of 2678006066 in words is "two billion, six hundred seventy-eight million, six thousand, sixty-six".