11111401668 has 24 divisors (see below), whose sum is σ = 25929687168. Its totient is φ = 3703360096.

The previous prime is 11111401667. The next prime is 11111401681. The reversal of 11111401668 is 86610411111.

It is not an unprimeable number, because it can be changed into a prime (11111401667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59605 + ... + 160547.

It is an arithmetic number, because the mean of its divisors is an integer number (1080403632).

Almost surely, 2^11111401668 is an apocalyptic number.

It is an amenable number.

11111401668 is an abundant number, since it is smaller than the sum of its proper divisors (14818285500).

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

11111401668 is a wasteful number, since it uses less digits than its factorization.

11111401668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110123 (or 110121 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 30.

Adding to 11111401668 its reverse (86610411111), we get a palindrome (97721812779).

The spelling of 11111401668 in words is "eleven billion, one hundred eleven million, four hundred one thousand, six hundred sixty-eight".