6664345071 has 8 divisors (see below), whose sum is σ = 8922973440. Its totient is φ = 4424306712.

The previous prime is 6664345043. The next prime is 6664345081. The reversal of 6664345071 is 1705434666.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6664345071 - 2⁶ = 6664345007 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6664345031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4646665 + ... + 4648098.

It is an arithmetic number, because the mean of its divisors is an integer number (1115371680).

Almost surely, 2^6664345071 is an apocalyptic number.

6664345071 is a deficient number, since it is larger than the sum of its proper divisors (2258628369).

6664345071 is a wasteful number, since it uses less digits than its factorization.

6664345071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9295005.

The product of its (nonzero) digits is 362880, while the sum is 42.

The square root of 6664345071 is about 81635.4400429127. The cubic root of 6664345071 is about 1881.8535618805.

The spelling of 6664345071 in words is "six billion, six hundred sixty-four million, three hundred forty-five thousand, seventy-one".