6664311029 has 4 divisors (see below), whose sum is σ = 6675183276. Its totient is φ = 6653438784.

The previous prime is 6664311013. The next prime is 6664311053. The reversal of 6664311029 is 9201134666.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2701608529 + 3962702500 = 51977^2 + 62950^2 .

It is a cyclic number.

It is not a de Polignac number, because 6664311029 - 2⁴ = 6664311013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6664310983 and 6664311001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6664311089) 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 in 3 ways as a sum of consecutive naturals, for example, 5435204 + ... + 5436429.

It is an arithmetic number, because the mean of its divisors is an integer number (1668795819).

Almost surely, 2^6664311029 is an apocalyptic number.

It is an amenable number.

6664311029 is a deficient number, since it is larger than the sum of its proper divisors (10872247).

6664311029 is a wasteful number, since it uses less digits than its factorization.

6664311029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10872246.

The product of its (nonzero) digits is 46656, while the sum is 38.

The square root of 6664311029 is about 81635.2315425148. The cubic root of 6664311029 is about 1881.8503576562.

The spelling of 6664311029 in words is "six billion, six hundred sixty-four million, three hundred eleven thousand, twenty-nine".