11220170555 has 8 divisors (see below), whose sum is σ = 14688223344. Its totient is φ = 8160124000.

The previous prime is 11220170539. The next prime is 11220170573. The reversal of 11220170555 is 55507102211.

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

It is not a de Polignac number, because 11220170555 - 2⁴ = 11220170539 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102001496 + ... + 102001605.

It is an arithmetic number, because the mean of its divisors is an integer number (1836027918).

Almost surely, 2^11220170555 is an apocalyptic number.

11220170555 is a deficient number, since it is larger than the sum of its proper divisors (3468052789).

11220170555 is a wasteful number, since it uses less digits than its factorization.

11220170555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204003117.

The product of its (nonzero) digits is 3500, while the sum is 29.

Adding to 11220170555 its reverse (55507102211), we get a palindrome (66727272766).

The spelling of 11220170555 in words is "eleven billion, two hundred twenty million, one hundred seventy thousand, five hundred fifty-five".