664062171713 has 8 divisors (see below), whose sum is σ = 706767788808. Its totient is φ = 621761347584.

The previous prime is 664062171701. The next prime is 664062171739. The reversal of 664062171713 is 317171260466.

It can be written as a sum of positive squares in 4 ways, for example, as 15832685584 + 648229486129 = 125828^2 + 805127^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-664062171713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (664062171743) 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 7 ways as a sum of consecutive naturals, for example, 101194856 + ... + 101201417.

It is an arithmetic number, because the mean of its divisors is an integer number (88345973601).

Almost surely, 2^664062171713 is an apocalyptic number.

It is an amenable number.

664062171713 is a deficient number, since it is larger than the sum of its proper divisors (42705617095).

664062171713 is a wasteful number, since it uses less digits than its factorization.

664062171713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202396483.

The product of its (nonzero) digits is 254016, while the sum is 44.

The spelling of 664062171713 in words is "six hundred sixty-four billion, sixty-two million, one hundred seventy-one thousand, seven hundred thirteen".