11123344455568 has 40 divisors (see below), whose sum is σ = 22686200802720. Its totient is φ = 5268852184320.

The previous prime is 11123344455551. The next prime is 11123344455571. The reversal of 11123344455568 is 86555444332111.

It is a plaindrome in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17047596 + ... + 17688052.

It is an arithmetic number, because the mean of its divisors is an integer number (567155020068).

Almost surely, 2^{11123344455568} is an apocalyptic number.

It is an amenable number.

11123344455568 is an abundant number, since it is smaller than the sum of its proper divisors (11562856347152).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11123344455568 is a wasteful number, since it uses less digits than its factorization.

11123344455568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 697615 (or 697609 counting only the distinct ones).

The product of its digits is 6912000, while the sum is 52.

Adding to 11123344455568 its reverse (86555444332111), we get a palindrome (97678788787679).

The spelling of 11123344455568 in words is "eleven trillion, one hundred twenty-three billion, three hundred forty-four million, four hundred fifty-five thousand, five hundred sixty-eight".