163840056 has 32 divisors (see below), whose sum is σ = 413231760. Its totient is φ = 54129152.

The previous prime is 163840051. The next prime is 163840129. The reversal of 163840056 is 650048361.

It is a junction number, because it is equal to n+sod(n) for n = 163839999 and 163840026.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163840051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27495 + ... + 32918.

Almost surely, 2^163840056 is an apocalyptic number.

It is an amenable number.

163840056 is an abundant number, since it is smaller than the sum of its proper divisors (249391704).

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

163840056 is a wasteful number, since it uses less digits than its factorization.

163840056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60535 (or 60531 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 163840056 is about 12800.0021874998. The cubic root of 163840056 is about 547.1923652794.

The spelling of 163840056 in words is "one hundred sixty-three million, eight hundred forty thousand, fifty-six".