11223334445678 has 4 divisors (see below), whose sum is σ = 16835001668520. Its totient is φ = 5611667222838.

The previous prime is 11223334445669. The next prime is 11223334445707. The reversal of 11223334445678 is 87654443332211.

11223334445678 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a plaindrome in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2805833611418 + ... + 2805833611421.

It is an arithmetic number, because the mean of its divisors is an integer number (4208750417130).

Almost surely, 2^{11223334445678} is an apocalyptic number.

11223334445678 is a deficient number, since it is larger than the sum of its proper divisors (5611667222842).

11223334445678 is an equidigital number, since it uses as much as digits as its factorization.

11223334445678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5611667222841.

The product of its digits is 11612160, while the sum is 53.

Adding to 11223334445678 its reverse (87654443332211), we get a palindrome (98877777777889).

The spelling of 11223334445678 in words is "eleven trillion, two hundred twenty-three billion, three hundred thirty-four million, four hundred forty-five thousand, six hundred seventy-eight".