223661116 has 12 divisors (see below), whose sum is σ = 447322288. Its totient is φ = 95854752.

The previous prime is 223661099. The next prime is 223661143. The reversal of 223661116 is 611166322.

223661116 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

223661116 is an admirable number.

It is a Harshad number since it is a multiple of its sum of digits (28), and also a Moran number because the ratio is a prime number: 7987897 = 223661116 / (2 + 2 + 3 + 6 + 6 + 1 + 1 + 1 + 6).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3993921 + ... + 3993976.

Almost surely, 2^223661116 is an apocalyptic number.

It is an amenable number.

223661116 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

223661116 is a wasteful number, since it uses less digits than its factorization.

223661116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7987908 (or 7987906 counting only the distinct ones).

The product of its digits is 2592, while the sum is 28.

The square root of 223661116 is about 14955.3039420802. The cubic root of 223661116 is about 607.0113744954.

223661116 divided by its sum of digits (28) gives a palindrome (7987897).

The spelling of 223661116 in words is "two hundred twenty-three million, six hundred sixty-one thousand, one hundred sixteen".