163663416 has 224 divisors, whose sum is σ = 556118400. Its totient is φ = 44089920.

The previous prime is 163663399. The next prime is 163663429. The reversal of 163663416 is 614366361.

163663416 is a `hidden beast` number, since 1 + 6 + 3 + 6 + 634 + 16 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 775551 + ... + 775761.

Almost surely, 2^163663416 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 163663416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (278059200).

163663416 is an abundant number, since it is smaller than the sum of its proper divisors (392454984).

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

163663416 is a wasteful number, since it uses less digits than its factorization.

163663416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261 (or 242 counting only the distinct ones).

The product of its digits is 46656, while the sum is 36.

The square root of 163663416 is about 12793.1003279111. The cubic root of 163663416 is about 546.9956473779.

The spelling of 163663416 in words is "one hundred sixty-three million, six hundred sixty-three thousand, four hundred sixteen".