162221016 has 64 divisors (see below), whose sum is σ = 420526080. Its totient is φ = 52093440.

The previous prime is 162221009. The next prime is 162221027. The reversal of 162221016 is 610122261.

It is a junction number, because it is equal to n+sod(n) for n = 162220983 and 162221001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 250405 + ... + 251051.

It is an arithmetic number, because the mean of its divisors is an integer number (6570720).

Almost surely, 2^162221016 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 162221016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (210263040).

162221016 is an abundant number, since it is smaller than the sum of its proper divisors (258305064).

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

162221016 is a wasteful number, since it uses less digits than its factorization.

162221016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1024 (or 1020 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 162221016 is about 12736.6014305230. The cubic root of 162221016 is about 545.3839742840.

Adding to 162221016 its reverse (610122261), we get a palindrome (772343277).

The spelling of 162221016 in words is "one hundred sixty-two million, two hundred twenty-one thousand, sixteen".