223344666431 has 4 divisors (see below), whose sum is σ = 225555999864. Its totient is φ = 221133333000.

The previous prime is 223344666403. The next prime is 223344666451. The reversal of 223344666431 is 134666443322.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-223344666431 is a prime.

It is a super-2 number, since 2×223344666431² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223344666451) 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, 1105666565 + ... + 1105666766.

It is an arithmetic number, because the mean of its divisors is an integer number (56388999966).

Almost surely, 2^223344666431 is an apocalyptic number.

223344666431 is a deficient number, since it is larger than the sum of its proper divisors (2211333433).

223344666431 is a wasteful number, since it uses less digits than its factorization.

223344666431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2211333432.

The product of its digits is 1492992, while the sum is 44.

The spelling of 223344666431 in words is "two hundred twenty-three billion, three hundred forty-four million, six hundred sixty-six thousand, four hundred thirty-one".