6664334071 has 2 divisors, whose sum is σ = 6664334072. Its totient is φ = 6664334070.

The previous prime is 6664334063. The next prime is 6664334093. The reversal of 6664334071 is 1704334666.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6664334071 - 2³ = 6664334063 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6664334041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3332167035 + 3332167036.

It is an arithmetic number, because the mean of its divisors is an integer number (3332167036).

Almost surely, 2^6664334071 is an apocalyptic number.

6664334071 is a deficient number, since it is larger than the sum of its proper divisors (1).

6664334071 is an equidigital number, since it uses as much as digits as its factorization.

6664334071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 217728, while the sum is 40.

The square root of 6664334071 is about 81635.3726701851. The cubic root of 6664334071 is about 1881.8525264999.

The spelling of 6664334071 in words is "six billion, six hundred sixty-four million, three hundred thirty-four thousand, seventy-one".