163141616221 has 16 divisors (see below), whose sum is σ = 165127559040. Its totient is φ = 161166154240.

The previous prime is 163141616213. The next prime is 163141616243. The reversal of 163141616221 is 122616141361.

It is a cyclic number.

It is not a de Polignac number, because 163141616221 - 2³ = 163141616213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163141611221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57870750 + ... + 57873568.

It is an arithmetic number, because the mean of its divisors is an integer number (10320472440).

Almost surely, 2^163141616221 is an apocalyptic number.

It is an amenable number.

163141616221 is a deficient number, since it is larger than the sum of its proper divisors (1985942819).

163141616221 is a wasteful number, since it uses less digits than its factorization.

163141616221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4436.

The product of its digits is 10368, while the sum is 34.

Adding to 163141616221 its reverse (122616141361), we get a palindrome (285757757582).

The spelling of 163141616221 in words is "one hundred sixty-three billion, one hundred forty-one million, six hundred sixteen thousand, two hundred twenty-one".