6666236147 has 2 divisors, whose sum is σ = 6666236148. Its totient is φ = 6666236146.

The previous prime is 6666236141. The next prime is 6666236153. The reversal of 6666236147 is 7416326666.

It is a balanced prime because it is at equal distance from previous prime (6666236141) and next prime (6666236153).

It is a cyclic number.

It is not a de Polignac number, because 6666236147 - 2⁴ = 6666236131 is a prime.

It is not a weakly prime, because it can be changed into another prime (6666236141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3333118073 + 3333118074.

It is an arithmetic number, because the mean of its divisors is an integer number (3333118074).

Almost surely, 2^6666236147 is an apocalyptic number.

6666236147 is a deficient number, since it is larger than the sum of its proper divisors (1).

6666236147 is an equidigital number, since it uses as much as digits as its factorization.

6666236147 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1306368, while the sum is 47.

The square root of 6666236147 is about 81647.0216664392. The cubic root of 6666236147 is about 1882.0315434382.

The spelling of 6666236147 in words is "six billion, six hundred sixty-six million, two hundred thirty-six thousand, one hundred forty-seven".