163589113705 has 4 divisors (see below), whose sum is σ = 196306936452. Its totient is φ = 130871290960.

The previous prime is 163589113679. The next prime is 163589113717. The reversal of 163589113705 is 507311985361.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 507311985361 = 7039 ⋅72071599.

It can be written as a sum of positive squares in 2 ways, for example, as 61458376464 + 102130737241 = 247908^2 + 319579^2 .

It is not a de Polignac number, because 163589113705 - 2³¹ = 161441630057 is a prime.

It is a super-3 number, since 3×163589113705³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16358911366 + ... + 16358911375.

It is an arithmetic number, because the mean of its divisors is an integer number (49076734113).

Almost surely, 2^163589113705 is an apocalyptic number.

It is an amenable number.

163589113705 is a deficient number, since it is larger than the sum of its proper divisors (32717822747).

163589113705 is an equidigital number, since it uses as much as digits as its factorization.

163589113705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32717822746.

The product of its (nonzero) digits is 680400, while the sum is 49.

The spelling of 163589113705 in words is "one hundred sixty-three billion, five hundred eighty-nine million, one hundred thirteen thousand, seven hundred five".