664713173176047 has 24 divisors (see below), whose sum is σ = 960324732649776. Its totient is φ = 443057434851456.

The previous prime is 664713173176021. The next prime is 664713173176097. The reversal of 664713173176047 is 740671371317466.

664713173176047 is a `hidden beast` number, since 6 + 6 + 4 + 7 + 1 + 3 + 1 + 7 + 3 + 17 + 604 + 7 = 666.

664713173176047 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 664713173176047 - 2¹¹ = 664713173173999 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (664713173176097) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2691709563 + ... + 2691956499.

It is an arithmetic number, because the mean of its divisors is an integer number (40013530527074).

Almost surely, 2^{664713173176047} is an apocalyptic number.

664713173176047 is a deficient number, since it is larger than the sum of its proper divisors (295611559473729).

664713173176047 is a wasteful number, since it uses less digits than its factorization.

664713173176047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302887 (or 302884 counting only the distinct ones).

The product of its (nonzero) digits is 74680704, while the sum is 63.

The spelling of 664713173176047 in words is "six hundred sixty-four trillion, seven hundred thirteen billion, one hundred seventy-three million, one hundred seventy-six thousand, forty-seven".