161616162 has 16 divisors (see below), whose sum is σ = 326565792. Its totient is φ = 53316480.

The previous prime is 161616151. The next prime is 161616179. The reversal of 161616162 is 261616161.

It is a super-2 number, since 2×161616162² = 52239567639220488, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 138264 + ... + 139427.

It is an arithmetic number, because the mean of its divisors is an integer number (20410362).

Almost surely, 2^161616162 is an apocalyptic number.

161616162 is an abundant number, since it is smaller than the sum of its proper divisors (164949630).

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

161616162 is a wasteful number, since it uses less digits than its factorization.

161616162 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277793.

The product of its digits is 2592, while the sum is 30.

The square root of 161616162 is about 12712.8345383711. The cubic root of 161616162 is about 544.7052941934.

Subtracting 161616162 from its reverse (261616161), we obtain a palindrome (99999999).

The spelling of 161616162 in words is "one hundred sixty-one million, six hundred sixteen thousand, one hundred sixty-two".