163256562 has 48 divisors (see below), whose sum is σ = 406785600. Its totient is φ = 46352736.

The previous prime is 163256551. The next prime is 163256567. The reversal of 163256562 is 265652361.

It is a happy number.

163256562 is a `hidden beast` number, since 1 + 6 + 32 + 565 + 62 = 666.

It is not an unprimeable number, because it can be changed into a prime (163256567) 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, 16564 + ... + 24512.

It is an arithmetic number, because the mean of its divisors is an integer number (8474700).

Almost surely, 2^163256562 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 163256562, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (203392800).

163256562 is an abundant number, since it is smaller than the sum of its proper divisors (243529038).

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

163256562 is a wasteful number, since it uses less digits than its factorization.

163256562 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8127 (or 8124 counting only the distinct ones).

The product of its digits is 64800, while the sum is 36.

The square root of 163256562 is about 12777.1891275037. The cubic root of 163256562 is about 546.5420089712.

The spelling of 163256562 in words is "one hundred sixty-three million, two hundred fifty-six thousand, five hundred sixty-two".