111056115665 has 8 divisors (see below), whose sum is σ = 145382551488. Its totient is φ = 80768084080.

The previous prime is 111056115637. The next prime is 111056115691. The reversal of 111056115665 is 566511650111.

It is a happy number.

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

It is not a de Polignac number, because 111056115665 - 2³⁴ = 93876246481 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1009600997 + ... + 1009601106.

It is an arithmetic number, because the mean of its divisors is an integer number (18172818936).

Almost surely, 2^111056115665 is an apocalyptic number.

It is an amenable number.

111056115665 is a deficient number, since it is larger than the sum of its proper divisors (34326435823).

111056115665 is a wasteful number, since it uses less digits than its factorization.

111056115665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2019202119.

The product of its (nonzero) digits is 27000, while the sum is 38.

Adding to 111056115665 its reverse (566511650111), we get a palindrome (677567765776).

The spelling of 111056115665 in words is "one hundred eleven billion, fifty-six million, one hundred fifteen thousand, six hundred sixty-five".