16113816 has 72 divisors (see below), whose sum is σ = 45465420. Its totient is φ = 5353776.

The previous prime is 16113787. The next prime is 16113829. The reversal of 16113816 is 61831161.

16113816 is a `hidden beast` number, since 1 + 611 + 38 + 16 = 666.

16113816 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (72).

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

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 16113816.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 52335 + ... + 52641.

Almost surely, 2^16113816 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 16113816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22732710).

16113816 is an abundant number, since it is smaller than the sum of its proper divisors (29351604).

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

16113816 is an frugal number, since it uses more digits than its factorization.

16113816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 337 (or 312 counting only the distinct ones).

The product of its digits is 864, while the sum is 27.

The square root of 16113816 is about 4014.2017886499. The cubic root of 16113816 is about 252.5802953468.

Adding to 16113816 its reverse (61831161), we get a palindrome (77944977).

The spelling of 16113816 in words is "sixteen million, one hundred thirteen thousand, eight hundred sixteen".