162720606 has 16 divisors (see below), whose sum is σ = 325603584. Its totient is φ = 54213144.

The previous prime is 162720601. The next prime is 162720619. The reversal of 162720606 is 606027261.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (162720601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9141 + ... + 20223.

It is an arithmetic number, because the mean of its divisors is an integer number (20350224).

Almost surely, 2^162720606 is an apocalyptic number.

162720606 is an abundant number, since it is smaller than the sum of its proper divisors (162882978).

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

162720606 is a wasteful number, since it uses less digits than its factorization.

162720606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13535.

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 162720606 is about 12756.1987284614. The cubic root of 162720606 is about 545.9432712198.

Adding to 162720606 its reverse (606027261), we get a palindrome (768747867).

The spelling of 162720606 in words is "one hundred sixty-two million, seven hundred twenty thousand, six hundred six".