11551448055 has 64 divisors (see below), whose sum is σ = 21972787200. Its totient is φ = 5070159360.

The previous prime is 11551448009. The next prime is 11551448057. The reversal of 11551448055 is 55084415511.

It is not a de Polignac number, because 11551448055 - 2¹⁰ = 11551447031 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11551448057) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 540666 + ... + 561624.

It is an arithmetic number, because the mean of its divisors is an integer number (343324800).

Almost surely, 2^11551448055 is an apocalyptic number.

11551448055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11551448055 is a deficient number, since it is larger than the sum of its proper divisors (10421339145).

11551448055 is a wasteful number, since it uses less digits than its factorization.

11551448055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21184.

The product of its (nonzero) digits is 80000, while the sum is 39.

The spelling of 11551448055 in words is "eleven billion, five hundred fifty-one million, four hundred forty-eight thousand, fifty-five".