223166655 has 24 divisors (see below), whose sum is σ = 387520848. Its totient is φ = 118807296.

The previous prime is 223166641. The next prime is 223166659. The reversal of 223166655 is 556661322.

It is a happy number.

It is not a de Polignac number, because 223166655 - 2⁸ = 223166399 is a prime.

It is a super-3 number, since 3×223166655³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223166659) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22504 + ... + 30866.

It is an arithmetic number, because the mean of its divisors is an integer number (16146702).

Almost surely, 2^223166655 is an apocalyptic number.

223166655 is a deficient number, since it is larger than the sum of its proper divisors (164354193).

223166655 is a wasteful number, since it uses less digits than its factorization.

223166655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8967 (or 8964 counting only the distinct ones).

The product of its digits is 64800, while the sum is 36.

The square root of 223166655 is about 14938.7635030480. The cubic root of 223166655 is about 606.5637256739.

It can be divided in two parts, 2231 and 66655, that added together give a palindrome (68886).

The spelling of 223166655 in words is "two hundred twenty-three million, one hundred sixty-six thousand, six hundred fifty-five".