206505141161 has 8 divisors (see below), whose sum is σ = 226109624448. Its totient is φ = 187039206000.

The previous prime is 206505141151. The next prime is 206505141277. The reversal of 206505141161 is 161141505602.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-206505141161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (206505141151) 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, 34633910 + ... + 34639871.

It is an arithmetic number, because the mean of its divisors is an integer number (28263703056).

Almost surely, 2^206505141161 is an apocalyptic number.

It is an amenable number.

206505141161 is a deficient number, since it is larger than the sum of its proper divisors (19604483287).

206505141161 is a wasteful number, since it uses less digits than its factorization.

206505141161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69274063.

The product of its (nonzero) digits is 7200, while the sum is 32.

Adding to 206505141161 its reverse (161141505602), we get a palindrome (367646646763).

The spelling of 206505141161 in words is "two hundred six billion, five hundred five million, one hundred forty-one thousand, one hundred sixty-one".