11155413188 has 6 divisors (see below), whose sum is σ = 19521973086. Its totient is φ = 5577706592.

The previous prime is 11155413187. The next prime is 11155413197. The reversal of 11155413188 is 88131455111.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 7679367424 + 3476045764 = 87632^2 + 58958^2 .

It is not an unprimeable number, because it can be changed into a prime (11155413187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1394426645 + ... + 1394426652.

It is an arithmetic number, because the mean of its divisors is an integer number (3253662181).

Almost surely, 2^11155413188 is an apocalyptic number.

It is an amenable number.

11155413188 is a deficient number, since it is larger than the sum of its proper divisors (8366559898).

11155413188 is a wasteful number, since it uses less digits than its factorization.

11155413188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2788853301 (or 2788853299 counting only the distinct ones).

The product of its digits is 19200, while the sum is 38.

Adding to 11155413188 its reverse (88131455111), we get a palindrome (99286868299).

The spelling of 11155413188 in words is "eleven billion, one hundred fifty-five million, four hundred thirteen thousand, one hundred eighty-eight".