173664497005 has 8 divisors (see below), whose sum is σ = 208401326712. Its totient is φ = 138928977408.

The previous prime is 173664496997. The next prime is 173664497011. The reversal of 173664497005 is 500794466371.

It can be written as a sum of positive squares in 4 ways, for example, as 3738344164 + 169926152841 = 61142^2 + 412221^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 173664497005 - 2³ = 173664496997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7464 + ... + 589393.

It is an arithmetic number, because the mean of its divisors is an integer number (26050165839).

Almost surely, 2^173664497005 is an apocalyptic number.

It is an amenable number.

173664497005 is a deficient number, since it is larger than the sum of its proper divisors (34736829707).

173664497005 is an equidigital number, since it uses as much as digits as its factorization.

173664497005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 655055.

The product of its (nonzero) digits is 3810240, while the sum is 52.

The spelling of 173664497005 in words is "one hundred seventy-three billion, six hundred sixty-four million, four hundred ninety-seven thousand, five".