161327100206 has 4 divisors (see below), whose sum is σ = 241990650312. Its totient is φ = 80663550102.

The previous prime is 161327100199. The next prime is 161327100211. The reversal of 161327100206 is 602001723161.

161327100206 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40331775050 + ... + 40331775053.

It is an arithmetic number, because the mean of its divisors is an integer number (60497662578).

Almost surely, 2^161327100206 is an apocalyptic number.

161327100206 is a deficient number, since it is larger than the sum of its proper divisors (80663550106).

161327100206 is an equidigital number, since it uses as much as digits as its factorization.

161327100206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80663550105.

The product of its (nonzero) digits is 3024, while the sum is 29.

Adding to 161327100206 its reverse (602001723161), we get a palindrome (763328823367).

The spelling of 161327100206 in words is "one hundred sixty-one billion, three hundred twenty-seven million, one hundred thousand, two hundred six".