161105066206 has 48 divisors (see below), whose sum is σ = 282180550176. Its totient is φ = 68783092224.

The previous prime is 161105066197. The next prime is 161105066207. The reversal of 161105066206 is 602660501161.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161105066207) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30411750 + ... + 30417046.

It is an arithmetic number, because the mean of its divisors is an integer number (5878761462).

Almost surely, 2^161105066206 is an apocalyptic number.

161105066206 is a deficient number, since it is larger than the sum of its proper divisors (121075483970).

161105066206 is a wasteful number, since it uses less digits than its factorization.

161105066206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6433 (or 6426 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 34.

Adding to 161105066206 its reverse (602660501161), we get a palindrome (763765567367).

The spelling of 161105066206 in words is "one hundred sixty-one billion, one hundred five million, sixty-six thousand, two hundred six".