13163616 has 36 divisors (see below), whose sum is σ = 37434852. Its totient is φ = 4387776.

The previous prime is 13163597. The next prime is 13163621. The reversal of 13163616 is 61636131.

It is a happy number.

13163616 is a `hidden beast` number, since 13 + 1 + 636 + 16 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

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

It is a self number, because there is not a number n which added to its sum of digits gives 13163616.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 22566 + ... + 23141.

It is an arithmetic number, because the mean of its divisors is an integer number (1039857).

Almost surely, 2^13163616 is an apocalyptic number.

13163616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

13163616 is an abundant number, since it is smaller than the sum of its proper divisors (24271236).

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

13163616 is a wasteful number, since it uses less digits than its factorization.

13163616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45723 (or 45712 counting only the distinct ones).

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

The square root of 13163616 is about 3628.1697865453. The cubic root of 13163616 is about 236.1158102481.

Adding to 13163616 its reverse (61636131), we get a palindrome (74799747).

The spelling of 13163616 in words is "thirteen million, one hundred sixty-three thousand, six hundred sixteen".