1111111105560 has 64 divisors (see below), whose sum is σ = 3423423420000. Its totient is φ = 288288285696.

The previous prime is 1111111105463. The next prime is 1111111105567. The reversal of 1111111105560 is 655011111111.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 1111111105560.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1111111105567) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 125120685 + ... + 125129564.

Almost surely, 2^{1111111105560} is an apocalyptic number.

1111111105560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1111111105560 is an abundant number, since it is smaller than the sum of its proper divisors (2312312314440).

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

1111111105560 is a wasteful number, since it uses less digits than its factorization.

1111111105560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250250300 (or 250250296 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 24.

Adding to 1111111105560 its reverse (655011111111), we get a palindrome (1766122216671).

The spelling of 1111111105560 in words is "one trillion, one hundred eleven billion, one hundred eleven million, one hundred five thousand, five hundred sixty".