161103606 has 16 divisors (see below), whose sum is σ = 322515648. Its totient is φ = 53649800.

The previous prime is 161103583. The next prime is 161103619. The reversal of 161103606 is 606301161.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5760 + ... + 18851.

It is an arithmetic number, because the mean of its divisors is an integer number (20157228).

Almost surely, 2^161103606 is an apocalyptic number.

161103606 is an abundant number, since it is smaller than the sum of its proper divisors (161412042).

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

161103606 is a wasteful number, since it uses less digits than its factorization.

161103606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25707.

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 161103606 is about 12692.6595321863. The cubic root of 161103606 is about 544.1288509480.

Adding to 161103606 its reverse (606301161), we get a palindrome (767404767).

The spelling of 161103606 in words is "one hundred sixty-one million, one hundred three thousand, six hundred six".