11111000560 has 80 divisors (see below), whose sum is σ = 28713385440. Its totient is φ = 3964113920.

The previous prime is 11111000513. The next prime is 11111000587. The reversal of 11111000560 is 6500011111.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

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, 72475 + ... + 165754.

It is an arithmetic number, because the mean of its divisors is an integer number (358917318).

Almost surely, 2^11111000560 is an apocalyptic number.

11111000560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11111000560 is an abundant number, since it is smaller than the sum of its proper divisors (17602384880).

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

11111000560 is a wasteful number, since it uses less digits than its factorization.

11111000560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238306 (or 238300 counting only the distinct ones).

The product of its (nonzero) digits is 30, while the sum is 16.

Adding to 11111000560 its reverse (6500011111), we get a palindrome (17611011671).

The spelling of 11111000560 in words is "eleven billion, one hundred eleven million, five hundred sixty", and thus it is an aban number.