162643716 has 72 divisors (see below), whose sum is σ = 435314880. Its totient is φ = 51113664.

The previous prime is 162643661. The next prime is 162643717. The reversal of 162643716 is 617346261.

It is a happy number.

162643716 is a `hidden beast` number, since 1 + 6 + 2 + 643 + 7 + 1 + 6 = 666.

162643716 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 (36).

It is not an unprimeable number, because it can be changed into a prime (162643717) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 43081 + ... + 46703.

It is an arithmetic number, because the mean of its divisors is an integer number (6046040).

Almost surely, 2^162643716 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 162643716, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (217657440).

162643716 is an abundant number, since it is smaller than the sum of its proper divisors (272671164).

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

162643716 is a wasteful number, since it uses less digits than its factorization.

162643716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3705 (or 3700 counting only the distinct ones).

The product of its digits is 36288, while the sum is 36.

The square root of 162643716 is about 12753.1845434778. The cubic root of 162643716 is about 545.8572665587.

Adding to 162643716 its reverse (617346261), we get a palindrome (779989977).

The spelling of 162643716 in words is "one hundred sixty-two million, six hundred forty-three thousand, seven hundred sixteen".