163601316 has 48 divisors (see below), whose sum is σ = 434508480. Its totient is φ = 53202240.

The previous prime is 163601297. The next prime is 163601327. The reversal of 163601316 is 613106361.

It is a happy number.

163601316 is a `hidden beast` number, since 1 + 636 + 0 + 13 + 16 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 163601316.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14046 + ... + 22901.

It is an arithmetic number, because the mean of its divisors is an integer number (9052260).

Almost surely, 2^163601316 is an apocalyptic number.

It is an amenable number.

163601316 is an abundant number, since it is smaller than the sum of its proper divisors (270907164).

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

163601316 is a wasteful number, since it uses less digits than its factorization.

163601316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37001 (or 36993 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 163601316 is about 12790.6730080946. The cubic root of 163601316 is about 546.9264551138.

Adding to 163601316 its reverse (613106361), we get a palindrome (776707677).

The spelling of 163601316 in words is "one hundred sixty-three million, six hundred one thousand, three hundred sixteen".