2006646767 has 2 divisors, whose sum is σ = 2006646768. Its totient is φ = 2006646766.

The previous prime is 2006646749. The next prime is 2006646769. The reversal of 2006646767 is 7676466002.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2006646767 - 2⁸ = 2006646511 is a prime.

Together with 2006646769, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2006646769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1003323383 + 1003323384.

It is an arithmetic number, because the mean of its divisors is an integer number (1003323384).

Almost surely, 2^2006646767 is an apocalyptic number.

2006646767 is a deficient number, since it is larger than the sum of its proper divisors (1).

2006646767 is an equidigital number, since it uses as much as digits as its factorization.

2006646767 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 508032, while the sum is 44.

The square root of 2006646767 is about 44795.6110238492. The cubic root of 2006646767 is about 1261.3152401668.

The spelling of 2006646767 in words is "two billion, six million, six hundred forty-six thousand, seven hundred sixty-seven".