6664012471 has 2 divisors, whose sum is σ = 6664012472. Its totient is φ = 6664012470.

The previous prime is 6664012469. The next prime is 6664012517. The reversal of 6664012471 is 1742104666.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6664012471 - 2¹ = 6664012469 is a prime.

It is a super-3 number, since 3×6664012471³ (a number of 30 digits) contains 333 as substring.

Together with 6664012469, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 6664012471.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6664012451) 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, 3332006235 + 3332006236.

It is an arithmetic number, because the mean of its divisors is an integer number (3332006236).

Almost surely, 2^6664012471 is an apocalyptic number.

6664012471 is a deficient number, since it is larger than the sum of its proper divisors (1).

6664012471 is an equidigital number, since it uses as much as digits as its factorization.

6664012471 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 6664012471 is about 81633.4029120433. The cubic root of 6664012471 is about 1881.8222552329.

The spelling of 6664012471 in words is "six billion, six hundred sixty-four million, twelve thousand, four hundred seventy-one".