6671444651 has 2 divisors, whose sum is σ = 6671444652. Its totient is φ = 6671444650.

The previous prime is 6671444603. The next prime is 6671444671. The reversal of 6671444651 is 1564441766.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6671444651 - 2⁶ = 6671444587 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (6671444671) 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 as a sum of consecutive naturals, namely, 3335722325 + 3335722326.

It is an arithmetic number, because the mean of its divisors is an integer number (3335722326).

Almost surely, 2^6671444651 is an apocalyptic number.

6671444651 is a deficient number, since it is larger than the sum of its proper divisors (1).

6671444651 is an equidigital number, since it uses as much as digits as its factorization.

6671444651 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 483840, while the sum is 44.

The square root of 6671444651 is about 81678.9119112149. The cubic root of 6671444651 is about 1882.5215759299.

The spelling of 6671444651 in words is "six billion, six hundred seventy-one million, four hundred forty-four thousand, six hundred fifty-one".