161465422206 has 32 divisors (see below), whose sum is σ = 352535966208. Its totient is φ = 48894503040.

The previous prime is 161465422201. The next prime is 161465422207. The reversal of 161465422206 is 602224564161.

161465422206 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161465422201) by changing a digit.

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 in 15 ways as a sum of consecutive naturals, for example, 765691 + ... + 953526.

It is an arithmetic number, because the mean of its divisors is an integer number (11016748944).

Almost surely, 2^161465422206 is an apocalyptic number.

161465422206 is an abundant number, since it is smaller than the sum of its proper divisors (191070544002).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

161465422206 is a wasteful number, since it uses less digits than its factorization.

161465422206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1720656.

The product of its (nonzero) digits is 138240, while the sum is 39.

Adding to 161465422206 its reverse (602224564161), we get a palindrome (763689986367).

The spelling of 161465422206 in words is "one hundred sixty-one billion, four hundred sixty-five million, four hundred twenty-two thousand, two hundred six".