11135855553 has 16 divisors (see below), whose sum is σ = 15621035136. Its totient is φ = 7047077760.

The previous prime is 11135855543. The next prime is 11135855587. The reversal of 11135855553 is 35555853111.

It is not a de Polignac number, because 11135855553 - 2³⁰ = 10062113729 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11135855503) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1218901 + ... + 1228002.

It is an arithmetic number, because the mean of its divisors is an integer number (976314696).

Almost surely, 2^11135855553 is an apocalyptic number.

It is an amenable number.

11135855553 is a deficient number, since it is larger than the sum of its proper divisors (4485179583).

11135855553 is a wasteful number, since it uses less digits than its factorization.

11135855553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2446984.

The product of its digits is 225000, while the sum is 42.

The spelling of 11135855553 in words is "eleven billion, one hundred thirty-five million, eight hundred fifty-five thousand, five hundred fifty-three".