11226171551 has 16 divisors (see below), whose sum is σ = 13275820800. Its totient is φ = 9293030208.

The previous prime is 11226171547. The next prime is 11226171559. The reversal of 11226171551 is 15517162211.

11226171551 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11226171551 - 2² = 11226171547 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11226171559) 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 15 ways as a sum of consecutive naturals, for example, 182741 + ... + 236318.

It is an arithmetic number, because the mean of its divisors is an integer number (829738800).

Almost surely, 2^11226171551 is an apocalyptic number.

11226171551 is a deficient number, since it is larger than the sum of its proper divisors (2049649249).

11226171551 is an equidigital number, since it uses as much as digits as its factorization.

11226171551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 419198.

The product of its digits is 4200, while the sum is 32.

The spelling of 11226171551 in words is "eleven billion, two hundred twenty-six million, one hundred seventy-one thousand, five hundred fifty-one".