163206005231 has 8 divisors (see below), whose sum is σ = 172068067200. Its totient is φ = 154371170520.

The previous prime is 163206005147. The next prime is 163206005311. The reversal of 163206005231 is 132500602361.

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 163206005231 - 2²² = 163201810927 is a prime.

It is a super-2 number, since 2×163206005231² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 163206005194 and 163206005203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163206025231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6794501 + ... + 6818478.

It is an arithmetic number, because the mean of its divisors is an integer number (21508508400).

Almost surely, 2^163206005231 is an apocalyptic number.

163206005231 is a deficient number, since it is larger than the sum of its proper divisors (8862061969).

163206005231 is a wasteful number, since it uses less digits than its factorization.

163206005231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13613629.

The product of its (nonzero) digits is 6480, while the sum is 29.

Adding to 163206005231 its reverse (132500602361), we get a palindrome (295706607592).

The spelling of 163206005231 in words is "one hundred sixty-three billion, two hundred six million, five thousand, two hundred thirty-one".