161461622206 has 32 divisors (see below), whose sum is σ = 254795321088. Its totient is φ = 76630494720.

The previous prime is 161461622197. The next prime is 161461622207. The reversal of 161461622206 is 602226164161.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161461622207) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20556576 + ... + 20564428.

It is an arithmetic number, because the mean of its divisors is an integer number (7962353784).

Almost surely, 2^161461622206 is an apocalyptic number.

161461622206 is a deficient number, since it is larger than the sum of its proper divisors (93333698882).

161461622206 is a wasteful number, since it uses less digits than its factorization.

161461622206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14196.

The product of its (nonzero) digits is 41472, while the sum is 37.

Adding to 161461622206 its reverse (602226164161), we get a palindrome (763687786367).

The spelling of 161461622206 in words is "one hundred sixty-one billion, four hundred sixty-one million, six hundred twenty-two thousand, two hundred six".