11155000004 has 6 divisors (see below), whose sum is σ = 19521250014. Its totient is φ = 5577500000.

The previous prime is 11155000001. The next prime is 11155000009. The reversal of 11155000004 is 40000055111.

It can be written as a sum of positive squares in only one way, i.e., 9506640004 + 1648360000 = 97502^2 + 40600^2 .

It is not an unprimeable number, because it can be changed into a prime (11155000001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1394374997 + ... + 1394375004.

It is an arithmetic number, because the mean of its divisors is an integer number (3253541669).

Almost surely, 2^11155000004 is an apocalyptic number.

It is an amenable number.

11155000004 is a deficient number, since it is larger than the sum of its proper divisors (8366250010).

11155000004 is a wasteful number, since it uses less digits than its factorization.

11155000004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2788750005 (or 2788750003 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 17.

Adding to 11155000004 its reverse (40000055111), we get a palindrome (51155055115).

The spelling of 11155000004 in words is "eleven billion, one hundred fifty-five million, four", and thus it is an aban number.