223161312663 has 48 divisors (see below), whose sum is σ = 342814174560. Its totient is φ = 139405258752.

The previous prime is 223161312643. The next prime is 223161312743. The reversal of 223161312663 is 366213161322.

223161312663 is a `hidden beast` number, since 2 + 2 + 31 + 613 + 1 + 2 + 6 + 6 + 3 = 666.

It is not a de Polignac number, because 223161312663 - 2¹² = 223161308567 is a prime.

It is a super-3 number, since 3×223161312663³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223161312623) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 35290420 + ... + 35296742.

It is an arithmetic number, because the mean of its divisors is an integer number (7141961970).

Almost surely, 2^223161312663 is an apocalyptic number.

223161312663 is a deficient number, since it is larger than the sum of its proper divisors (119652861897).

223161312663 is a wasteful number, since it uses less digits than its factorization.

223161312663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7328 (or 7325 counting only the distinct ones).

The product of its digits is 46656, while the sum is 36.

Adding to 223161312663 its reverse (366213161322), we get a palindrome (589374473985).

It can be divided in two parts, 223161 and 312663, that added together give a square (535824 = 732²).

The spelling of 223161312663 in words is "two hundred twenty-three billion, one hundred sixty-one million, three hundred twelve thousand, six hundred sixty-three".