163438261241 has 8 divisors (see below), whose sum is σ = 165505812864. Its totient is φ = 161383672800.

The previous prime is 163438261237. The next prime is 163438261289. The reversal of 163438261241 is 142162834361.

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 163438261241 - 2² = 163438261237 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (163438261841) by changing a digit.

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, 3215420 + ... + 3265853.

It is an arithmetic number, because the mean of its divisors is an integer number (20688226608).

Almost surely, 2^163438261241 is an apocalyptic number.

It is an amenable number.

163438261241 is a deficient number, since it is larger than the sum of its proper divisors (2067551623).

163438261241 is a wasteful number, since it uses less digits than its factorization.

163438261241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6481591.

The product of its digits is 165888, while the sum is 41.

The spelling of 163438261241 in words is "one hundred sixty-three billion, four hundred thirty-eight million, two hundred sixty-one thousand, two hundred forty-one".