163111056 has 80 divisors (see below), whose sum is σ = 455756544. Its totient is φ = 50071552.

The previous prime is 163111021. The next prime is 163111097. The reversal of 163111056 is 650111361.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36226 + ... + 40478.

Almost surely, 2^163111056 is an apocalyptic number.

163111056 is a gapful number since it is divisible by the number (16) 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 163111056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (227878272).

163111056 is an abundant number, since it is smaller than the sum of its proper divisors (292645488).

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

163111056 is a wasteful number, since it uses less digits than its factorization.

163111056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4328 (or 4322 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 24.

The square root of 163111056 is about 12771.4938828627. The cubic root of 163111056 is about 546.3795881810.

The spelling of 163111056 in words is "one hundred sixty-three million, one hundred eleven thousand, fifty-six".