6666000106 has 4 divisors (see below), whose sum is σ = 9999000162. Its totient is φ = 3333000052.

The previous prime is 6666000079. The next prime is 6666000157. The reversal of 6666000106 is 6010006666.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 4742388225 + 1923611881 = 68865^2 + 43859^2 .

It is a super-2 number, since 2×6666000106² = 88871114826384022472, which contains 22 as substring.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 1666500025 + ... + 1666500028.

Almost surely, 2^6666000106 is an apocalyptic number.

6666000106 is a deficient number, since it is larger than the sum of its proper divisors (3333000056).

6666000106 is a wasteful number, since it uses less digits than its factorization.

6666000106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3333000055.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 6666000106 is about 81645.5761569480. The cubic root of 6666000106 is about 1882.0093299111.

The spelling of 6666000106 in words is "six billion, six hundred sixty-six million, one hundred six", and thus it is an aban number.