163540064403617 has 8 divisors (see below), whose sum is σ = 178627327388832. Its totient is φ = 148489465485600.

The previous prime is 163540064403601. The next prime is 163540064403649. The reversal of 163540064403617 is 716304460045361.

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 163540064403617 - 2⁴ = 163540064403601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (163540064403217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9166007468 + ... + 9166025309.

It is an arithmetic number, because the mean of its divisors is an integer number (22328415923604).

Almost surely, 2^{163540064403617} is an apocalyptic number.

It is an amenable number.

163540064403617 is a deficient number, since it is larger than the sum of its proper divisors (15087262985215).

163540064403617 is a wasteful number, since it uses less digits than its factorization.

163540064403617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18332033599.

The product of its (nonzero) digits is 4354560, while the sum is 50.

The spelling of 163540064403617 in words is "one hundred sixty-three trillion, five hundred forty billion, sixty-four million, four hundred three thousand, six hundred seventeen".