163208916 has 72 divisors (see below), whose sum is σ = 451653384. Its totient is φ = 49386240.

The previous prime is 163208873. The next prime is 163208953. The reversal of 163208916 is 619802361.

163208916 is a `hidden beast` number, since 1 + 632 + 0 + 8 + 9 + 16 = 666.

163208916 is digitally balanced in base 3, 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 4 ways, for example, as 646416 + 162562500 = 804^2 + 12750^2 .

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25690 + ... + 31406.

Almost surely, 2^163208916 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 163208916, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (225826692).

163208916 is an abundant number, since it is smaller than the sum of its proper divisors (288444468).

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

163208916 is a wasteful number, since it uses less digits than its factorization.

163208916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5801 (or 5796 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 163208916 is about 12775.3244968572. The cubic root of 163208916 is about 546.4888348467.

The spelling of 163208916 in words is "one hundred sixty-three million, two hundred eight thousand, nine hundred sixteen".