1115616611 has 8 divisors (see below), whose sum is σ = 1120070160. Its totient is φ = 1111171072.

The previous prime is 1115616589. The next prime is 1115616659. The reversal of 1115616611 is 1166165111.

It is a happy number.

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 1115616611 - 2⁶ = 1115616547 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1115616511) 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, 496256 + ... + 498498.

It is an arithmetic number, because the mean of its divisors is an integer number (140008770).

Almost surely, 2^1115616611 is an apocalyptic number.

1115616611 is a deficient number, since it is larger than the sum of its proper divisors (4453549).

1115616611 is a wasteful number, since it uses less digits than its factorization.

1115616611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4005.

The product of its digits is 1080, while the sum is 29.

The square root of 1115616611 is about 33400.8474593086. The cubic root of 1115616611 is about 1037.1422442129.

The spelling of 1115616611 in words is "one billion, one hundred fifteen million, six hundred sixteen thousand, six hundred eleven".