11204141215545 has 12 divisors (see below), whose sum is σ = 19420511440356. Its totient is φ = 5975541981600.

The previous prime is 11204141215441. The next prime is 11204141215601. The reversal of 11204141215545 is 54551214140211.

11204141215545 is a `hidden beast` number, since 1 + 1 + 2 + 0 + 41 + 41 + 21 + 554 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 7989396208704 + 3214745006841 = 2826552^2 + 1792971^2 .

It is not a de Polignac number, because 11204141215545 - 2²⁰ = 11204140166969 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 124490457906 + ... + 124490457995.

It is an arithmetic number, because the mean of its divisors is an integer number (1618375953363).

Almost surely, 2^{11204141215545} is an apocalyptic number.

11204141215545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11204141215545 is a deficient number, since it is larger than the sum of its proper divisors (8216370224811).

11204141215545 is a wasteful number, since it uses less digits than its factorization.

11204141215545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248980915912 (or 248980915909 counting only the distinct ones).

The product of its (nonzero) digits is 32000, while the sum is 36.

Adding to 11204141215545 its reverse (54551214140211), we get a palindrome (65755355355756).

The spelling of 11204141215545 in words is "eleven trillion, two hundred four billion, one hundred forty-one million, two hundred fifteen thousand, five hundred forty-five".