223164644438 has 32 divisors (see below), whose sum is σ = 365578583040. Its totient is φ = 101780189280.

The previous prime is 223164644413. The next prime is 223164644447. The reversal of 223164644438 is 834446461322.

It is a super-3 number, since 3×223164644438³ (a number of 35 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 223164644392 and 223164644401.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 248756 + ... + 712887.

It is an arithmetic number, because the mean of its divisors is an integer number (11424330720).

Almost surely, 2^223164644438 is an apocalyptic number.

223164644438 is a deficient number, since it is larger than the sum of its proper divisors (142413938602).

223164644438 is a wasteful number, since it uses less digits than its factorization.

223164644438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 961892.

The product of its digits is 2654208, while the sum is 47.

The spelling of 223164644438 in words is "two hundred twenty-three billion, one hundred sixty-four million, six hundred forty-four thousand, four hundred thirty-eight".