163231320601145 has 8 divisors (see below), whose sum is σ = 196130983930056. Its totient is φ = 130416123675136.

The previous prime is 163231320601061. The next prime is 163231320601201. The reversal of 163231320601145 is 541106023132361.

It can be written as a sum of positive squares in 4 ways, for example, as 25923616642576 + 137307703958569 = 5091524^2 + 11717837^2 .

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 163231320601145 - 2⁸ = 163231320600889 is a prime.

It is a super-3 number, since 3×163231320601145³ (a number of 44 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 163231320601099 and 163231320601108.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21116596472 + ... + 21116604201.

It is an arithmetic number, because the mean of its divisors is an integer number (24516372991257).

Almost surely, 2^{163231320601145} is an apocalyptic number.

It is an amenable number.

163231320601145 is a deficient number, since it is larger than the sum of its proper divisors (32899663328911).

163231320601145 is an equidigital number, since it uses as much as digits as its factorization.

163231320601145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42233201451.

The product of its (nonzero) digits is 77760, while the sum is 38.

The spelling of 163231320601145 in words is "one hundred sixty-three trillion, two hundred thirty-one billion, three hundred twenty million, six hundred one thousand, one hundred forty-five".