162512220 has 96 divisors (see below), whose sum is σ = 495754560. Its totient is φ = 39536640.

The previous prime is 162512219. The next prime is 162512239. The reversal of 162512220 is 22215261.

It is a happy number.

162512220 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 68250 + ... + 70590.

It is an arithmetic number, because the mean of its divisors is an integer number (5164110).

Almost surely, 2^162512220 is an apocalyptic number.

162512220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 162512220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (247877280).

162512220 is an abundant number, since it is smaller than the sum of its proper divisors (333242340).

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

162512220 is a wasteful number, since it uses less digits than its factorization.

162512220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2455 (or 2453 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 162512220 is about 12748.0280828056. The cubic root of 162512220 is about 545.7101199785.

Adding to 162512220 its reverse (22215261), we get a palindrome (184727481).

The spelling of 162512220 in words is "one hundred sixty-two million, five hundred twelve thousand, two hundred twenty".