163161544 has 64 divisors (see below), whose sum is σ = 381427200. Its totient is φ = 63707904.

The previous prime is 163161541. The next prime is 163161553. The reversal of 163161544 is 445161361.

163161544 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (163161541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56094 + ... + 58930.

It is an arithmetic number, because the mean of its divisors is an integer number (5959800).

Almost surely, 2^163161544 is an apocalyptic number.

163161544 is a gapful number since it is divisible by the number (14) 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 163161544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (190713600).

163161544 is an abundant number, since it is smaller than the sum of its proper divisors (218265656).

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

163161544 is a wasteful number, since it uses less digits than its factorization.

163161544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2942 (or 2938 counting only the distinct ones).

The product of its digits is 8640, while the sum is 31.

The square root of 163161544 is about 12773.4703193768. The cubic root of 163161544 is about 546.4359562524.

The spelling of 163161544 in words is "one hundred sixty-three million, one hundred sixty-one thousand, five hundred forty-four".