11155163512 has 16 divisors (see below), whose sum is σ = 21270439800. Its totient is φ = 5483046240.

The previous prime is 11155163449. The next prime is 11155163527. The reversal of 11155163512 is 21536155111.

It is a happy number.

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, 11816439 + ... + 11817382.

Almost surely, 2^11155163512 is an apocalyptic number.

It is an amenable number.

11155163512 is a deficient number, since it is larger than the sum of its proper divisors (10115276288).

11155163512 is a wasteful number, since it uses less digits than its factorization.

11155163512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23633886 (or 23633882 counting only the distinct ones).

The product of its digits is 4500, while the sum is 31.

The spelling of 11155163512 in words is "eleven billion, one hundred fifty-five million, one hundred sixty-three thousand, five hundred twelve".