162169812 has 108 divisors (see below), whose sum is σ = 480834900. Its totient is φ = 45948672.

The previous prime is 162169789. The next prime is 162169831. The reversal of 162169812 is 218961261.

It can be written as a sum of positive squares in 2 ways, for example, as 10732176 + 151437636 = 3276^2 + 12306^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 262528 + ... + 263144.

It is an arithmetic number, because the mean of its divisors is an integer number (4452175).

Almost surely, 2^162169812 is an apocalyptic number.

162169812 is a gapful number since it is divisible by the number (12) 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 162169812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (240417450).

162169812 is an abundant number, since it is smaller than the sum of its proper divisors (318665088).

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

162169812 is a wasteful number, since it uses less digits than its factorization.

162169812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 790 (or 778 counting only the distinct ones).

The product of its digits is 10368, while the sum is 36.

The square root of 162169812 is about 12734.5911595151. The cubic root of 162169812 is about 545.3265859537.

The spelling of 162169812 in words is "one hundred sixty-two million, one hundred sixty-nine thousand, eight hundred twelve".