163338642 has 24 divisors (see below), whose sum is σ = 355952844. Its totient is φ = 54130464.

The previous prime is 163338607. The next prime is 163338667. The reversal of 163338642 is 246833361.

163338642 is a `hidden beast` number, since 1 + 6 + 3 + 3 + 3 + 8 + 642 = 666.

163338642 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 157477401 + 5861241 = 12549^2 + 2421^2 .

It is a junction number, because it is equal to n+sod(n) for n = 163338597 and 163338606.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23113 + ... + 29340.

Almost surely, 2^163338642 is an apocalyptic number.

163338642 is an abundant number, since it is smaller than the sum of its proper divisors (192614202).

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

163338642 is a wasteful number, since it uses less digits than its factorization.

163338642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52634 (or 52631 counting only the distinct ones).

The product of its digits is 62208, while the sum is 36.

The square root of 163338642 is about 12780.4006979437. The cubic root of 163338642 is about 546.6335880408.

The spelling of 163338642 in words is "one hundred sixty-three million, three hundred thirty-eight thousand, six hundred forty-two".