1111111110660 has 96 divisors (see below), whose sum is σ = 3275097154560. Its totient is φ = 280680895872.

The previous prime is 1111111110611. The next prime is 1111111110661. The reversal of 1111111110660 is 660111111111.

It is not an unprimeable number, because it can be changed into a prime (1111111110661) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20336539 + ... + 20391101.

It is an arithmetic number, because the mean of its divisors is an integer number (34115595360).

Almost surely, 2^{1111111110660} is an apocalyptic number.

1111111110660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1111111110660 is an abundant number, since it is smaller than the sum of its proper divisors (2163986043900).

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

1111111110660 is a wasteful number, since it uses less digits than its factorization.

1111111110660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72457 (or 72455 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 21.

Adding to 1111111110660 its reverse (660111111111), we get a palindrome (1771222221771).

The spelling of 1111111110660 in words is "one trillion, one hundred eleven billion, one hundred eleven million, one hundred ten thousand, six hundred sixty".