11155215033 has 6 divisors (see below), whose sum is σ = 16113088394. Its totient is φ = 7436810016.

The previous prime is 11155215017. The next prime is 11155215037. The reversal of 11155215033 is 33051255111.

11155215033 is a `hidden beast` number, since 1 + 1 + 155 + 2 + 1 + 503 + 3 = 666.

11155215033 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 10021411449 + 1133803584 = 100107^2 + 33672^2 .

It is not a de Polignac number, because 11155215033 - 2⁴ = 11155215017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11155214988 and 11155215006.

It is not an unprimeable number, because it can be changed into a prime (11155215037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 619734160 + ... + 619734177.

Almost surely, 2^11155215033 is an apocalyptic number.

It is an amenable number.

11155215033 is a deficient number, since it is larger than the sum of its proper divisors (4957873361).

11155215033 is a wasteful number, since it uses less digits than its factorization.

11155215033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1239468343 (or 1239468340 counting only the distinct ones).

The product of its (nonzero) digits is 2250, while the sum is 27.

The spelling of 11155215033 in words is "eleven billion, one hundred fifty-five million, two hundred fifteen thousand, thirty-three".