11005000556 has 48 divisors (see below), whose sum is σ = 21521590272. Its totient is φ = 4881004800.

The previous prime is 11005000493. The next prime is 11005000607. The reversal of 11005000556 is 65500050011.

It is a super-2 number, since 2×11005000556² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 689021 + ... + 704811.

It is an arithmetic number, because the mean of its divisors is an integer number (448366464).

Almost surely, 2^11005000556 is an apocalyptic number.

It is an amenable number.

11005000556 is a deficient number, since it is larger than the sum of its proper divisors (10516589716).

11005000556 is a wasteful number, since it uses less digits than its factorization.

11005000556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16190 (or 16188 counting only the distinct ones).

The product of its (nonzero) digits is 750, while the sum is 23.

Adding to 11005000556 its reverse (65500050011), we get a palindrome (76505050567).

The spelling of 11005000556 in words is "eleven billion, five million, five hundred fifty-six", and thus it is an aban number.