162106220 has 24 divisors (see below), whose sum is σ = 360448704. Its totient is φ = 61028096.

The previous prime is 162106207. The next prime is 162106247. The reversal of 162106220 is 22601261.

It is a happy number.

162106220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 162106192 and 162106201.

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, 238052 + ... + 238731.

It is an arithmetic number, because the mean of its divisors is an integer number (15018696).

Almost surely, 2^162106220 is an apocalyptic number.

162106220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

162106220 is an abundant number, since it is smaller than the sum of its proper divisors (198342484).

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

162106220 is a wasteful number, since it uses less digits than its factorization.

162106220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 476809 (or 476807 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 162106220 is about 12732.0940932747. The cubic root of 162106220 is about 545.2552966024.

Adding to 162106220 its reverse (22601261), we get a palindrome (184707481).

The spelling of 162106220 in words is "one hundred sixty-two million, one hundred six thousand, two hundred twenty".