163956912 has 80 divisors (see below), whose sum is σ = 485921280. Its totient is φ = 46665216.

The previous prime is 163956911. The next prime is 163956937. The reversal of 163956912 is 219659361.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (163956911) 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, 104389 + ... + 105947.

It is an arithmetic number, because the mean of its divisors is an integer number (6074016).

Almost surely, 2^163956912 is an apocalyptic number.

163956912 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 163956912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (242960640).

163956912 is an abundant number, since it is smaller than the sum of its proper divisors (321964368).

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

163956912 is a wasteful number, since it uses less digits than its factorization.

163956912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1890 (or 1884 counting only the distinct ones).

The product of its digits is 87480, while the sum is 42.

The square root of 163956912 is about 12804.5660605895. The cubic root of 163956912 is about 547.3224260973.

The spelling of 163956912 in words is "one hundred sixty-three million, nine hundred fifty-six thousand, nine hundred twelve".