11155245215 has 16 divisors (see below), whose sum is σ = 14182983360. Its totient is φ = 8393756160.

The previous prime is 11155245163. The next prime is 11155245223. The reversal of 11155245215 is 51254255111.

It is not a de Polignac number, because 11155245215 - 2⁶ = 11155245151 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90425 + ... + 174605.

It is an arithmetic number, because the mean of its divisors is an integer number (886436460).

Almost surely, 2^11155245215 is an apocalyptic number.

11155245215 is a deficient number, since it is larger than the sum of its proper divisors (3027738145).

11155245215 is a wasteful number, since it uses less digits than its factorization.

11155245215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85762.

The product of its digits is 10000, while the sum is 32.

The spelling of 11155245215 in words is "eleven billion, one hundred fifty-five million, two hundred forty-five thousand, two hundred fifteen".