11111223335668 has 12 divisors (see below), whose sum is σ = 19450685199652. Its totient is φ = 5553884707200.

The previous prime is 11111223335609. The next prime is 11111223335683. The reversal of 11111223335668 is 86653332211111.

It can be written as a sum of positive squares in 2 ways, for example, as 4653261608164 + 6457961727504 = 2157142^2 + 2541252^2 .

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 in 3 ways as a sum of consecutive naturals, for example, 431725683 + ... + 431751418.

Almost surely, 2^{11111223335668} is an apocalyptic number.

It is an amenable number.

11111223335668 is a deficient number, since it is larger than the sum of its proper divisors (8339461863984).

11111223335668 is a wasteful number, since it uses less digits than its factorization.

11111223335668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 863480322 (or 863480320 counting only the distinct ones).

The product of its digits is 155520, while the sum is 43.

Adding to 11111223335668 its reverse (86653332211111), we get a palindrome (97764555546779).

The spelling of 11111223335668 in words is "eleven trillion, one hundred eleven billion, two hundred twenty-three million, three hundred thirty-five thousand, six hundred sixty-eight".