1110661115611 has 8 divisors (see below), whose sum is σ = 1149053547600. Its totient is φ = 1072274935200.

The previous prime is 1110661115573. The next prime is 1110661115657. The reversal of 1110661115611 is 1165111660111.

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

It is a cyclic number.

It is not a de Polignac number, because 1110661115611 - 2²³ = 1110652727003 is a prime.

It is a super-2 number, since 2×1110661115611² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1110661115111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1200001 + ... + 1913458.

It is an arithmetic number, because the mean of its divisors is an integer number (143631693450).

Almost surely, 2^{1110661115611} is an apocalyptic number.

1110661115611 is a deficient number, since it is larger than the sum of its proper divisors (38392431989).

1110661115611 is a wasteful number, since it uses less digits than its factorization.

1110661115611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3125789.

The product of its (nonzero) digits is 1080, while the sum is 31.

Adding to 1110661115611 its reverse (1165111660111), we get a palindrome (2275772775722).

The spelling of 1110661115611 in words is "one trillion, one hundred ten billion, six hundred sixty-one million, one hundred fifteen thousand, six hundred eleven".