223231664 has 20 divisors (see below), whose sum is σ = 438438456. Its totient is φ = 110086272.

The previous prime is 223231663. The next prime is 223231667. The reversal of 223231664 is 466132322.

It is a super-3 number, since 3×223231664³ (a number of 26 digits) contains 333 as substring.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (223231661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94394 + ... + 96729.

Almost surely, 2^223231664 is an apocalyptic number.

It is an amenable number.

223231664 is a deficient number, since it is larger than the sum of its proper divisors (215206792).

223231664 is a wasteful number, since it uses less digits than its factorization.

223231664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191204 (or 191198 counting only the distinct ones).

The product of its digits is 10368, while the sum is 29.

The square root of 223231664 is about 14940.9391940400. The cubic root of 223231664 is about 606.6226177949.

Adding to 223231664 its reverse (466132322), we get a palindrome (689363986).

The spelling of 223231664 in words is "two hundred twenty-three million, two hundred thirty-one thousand, six hundred sixty-four".