163994912 has 24 divisors (see below), whose sum is σ = 326068092. Its totient is φ = 81184000.

The previous prime is 163994911. The next prime is 163994917. The reversal of 163994912 is 219499361.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 161696656 + 2298256 = 12716^2 + 1516^2 .

It is not an unprimeable number, because it can be changed into a prime (163994911) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22139 + ... + 28602.

Almost surely, 2^163994912 is an apocalyptic number.

It is an amenable number.

163994912 is a deficient number, since it is larger than the sum of its proper divisors (162073180).

163994912 is a wasteful number, since it uses less digits than its factorization.

163994912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50852 (or 50844 counting only the distinct ones).

The product of its digits is 104976, while the sum is 44.

The square root of 163994912 is about 12806.0498202998. The cubic root of 163994912 is about 547.3647068107.

The spelling of 163994912 in words is "one hundred sixty-three million, nine hundred ninety-four thousand, nine hundred twelve".