11155228833551 has 12 divisors (see below), whose sum is σ = 12906876339000. Its totient is φ = 9607374113040.

The previous prime is 11155228833547. The next prime is 11155228833659. The reversal of 11155228833551 is 15533882255111.

It is not a de Polignac number, because 11155228833551 - 2² = 11155228833547 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11155228833551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11155228832551) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2426102276 + ... + 2426106873.

It is an arithmetic number, because the mean of its divisors is an integer number (1075573028250).

Almost surely, 2^{11155228833551} is an apocalyptic number.

11155228833551 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11155228833551 is a deficient number, since it is larger than the sum of its proper divisors (1751647505449).

11155228833551 is a wasteful number, since it uses less digits than its factorization.

11155228833551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4852209190 (or 4852209179 counting only the distinct ones).

The product of its digits is 1440000, while the sum is 50.

The spelling of 11155228833551 in words is "eleven trillion, one hundred fifty-five billion, two hundred twenty-eight million, eight hundred thirty-three thousand, five hundred fifty-one".