162220500 has 288 divisors, whose sum is σ = 572382720. Its totient is φ = 38419200.

The previous prime is 162220493. The next prime is 162220501. The reversal of 162220500 is 5022261.

162220500 is a `hidden beast` number, since 162 + 2 + 2 + 0 + 500 = 666.

162220500 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 (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (162220501) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2749471 + ... + 2749529.

It is an arithmetic number, because the mean of its divisors is an integer number (1987440).

Almost surely, 2^162220500 is an apocalyptic number.

162220500 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 162220500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (286191360).

162220500 is an abundant number, since it is smaller than the sum of its proper divisors (410162220).

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

162220500 is a wasteful number, since it uses less digits than its factorization.

162220500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144 (or 129 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 162220500 is about 12736.5811739258. The cubic root of 162220500 is about 545.3833960227.

Adding to 162220500 its reverse (5022261), we get a palindrome (167242761).

It can be divided in two parts, 1622 and 20500, that added together give a palindrome (22122).

The spelling of 162220500 in words is "one hundred sixty-two million, two hundred twenty thousand, five hundred".