11121375855546 has 96 divisors (see below), whose sum is σ = 27865812881088. Its totient is φ = 3168152593920.

The previous prime is 11121375855539. The next prime is 11121375855559. The reversal of 11121375855546 is 64555857312111.

11121375855546 is a `hidden beast` number, since 1 + 1 + 1 + 2 + 1 + 3 + 7 + 5 + 85 + 554 + 6 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 11121375855492 and 11121375855501.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 934485 + ... + 4807911.

It is an arithmetic number, because the mean of its divisors is an integer number (290268884178).

Almost surely, 2^{11121375855546} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11121375855546, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13932906440544).

11121375855546 is an abundant number, since it is smaller than the sum of its proper divisors (16744437025542).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11121375855546 is a wasteful number, since it uses less digits than its factorization.

11121375855546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3874316 (or 3874313 counting only the distinct ones).

The product of its digits is 5040000, while the sum is 54.

The spelling of 11121375855546 in words is "eleven trillion, one hundred twenty-one billion, three hundred seventy-five million, eight hundred fifty-five thousand, five hundred forty-six".