11605554055 has 4 divisors (see below), whose sum is σ = 13926664872. Its totient is φ = 9284443240.

The previous prime is 11605554053. The next prime is 11605554083. The reversal of 11605554055 is 55045550611.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 11605554055 - 2¹ = 11605554053 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 (11605554053) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1160555401 + ... + 1160555410.

It is an arithmetic number, because the mean of its divisors is an integer number (3481666218).

Almost surely, 2^11605554055 is an apocalyptic number.

11605554055 is a deficient number, since it is larger than the sum of its proper divisors (2321110817).

11605554055 is an equidigital number, since it uses as much as digits as its factorization.

11605554055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2321110816.

The product of its (nonzero) digits is 75000, while the sum is 37.

The spelling of 11605554055 in words is "eleven billion, six hundred five million, five hundred fifty-four thousand, fifty-five".