223818066 has 24 divisors (see below), whose sum is σ = 502900944. Its totient is φ = 74605860.

The previous prime is 223818061. The next prime is 223818079. The reversal of 223818066 is 660818322.

223818066 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a self number, because there is not a number n which added to its sum of digits gives 223818066.

It is not an unprimeable number, because it can be changed into a prime (223818061) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 229780 + ... + 230751.

It is an arithmetic number, because the mean of its divisors is an integer number (20954206).

Almost surely, 2^223818066 is an apocalyptic number.

223818066 is an abundant number, since it is smaller than the sum of its proper divisors (279082878).

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

223818066 is an equidigital number, since it uses as much as digits as its factorization.

223818066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 460548 (or 460536 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 223818066 is about 14960.5503241024. The cubic root of 223818066 is about 607.1533275848.

The spelling of 223818066 in words is "two hundred twenty-three million, eight hundred eighteen thousand, sixty-six".