11003205545 has 8 divisors (see below), whose sum is σ = 13980543624. Its totient is φ = 8284766464.

The previous prime is 11003205509. The next prime is 11003205569. The reversal of 11003205545 is 54550230011.

It can be written as a sum of positive squares in 4 ways, for example, as 151191616 + 10852013929 = 12296^2 + 104173^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11003205545 - 2⁸ = 11003205289 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64724654 + ... + 64724823.

It is an arithmetic number, because the mean of its divisors is an integer number (1747567953).

Almost surely, 2^11003205545 is an apocalyptic number.

It is an amenable number.

11003205545 is a deficient number, since it is larger than the sum of its proper divisors (2977338079).

11003205545 is a wasteful number, since it uses less digits than its factorization.

11003205545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129449499.

The product of its (nonzero) digits is 3000, while the sum is 26.

Adding to 11003205545 its reverse (54550230011), we get a palindrome (65553435556).

The spelling of 11003205545 in words is "eleven billion, three million, two hundred five thousand, five hundred forty-five".