1116155065 has 4 divisors (see below), whose sum is σ = 1339386084. Its totient is φ = 892924048.

The previous prime is 1116155059. The next prime is 1116155081. The reversal of 1116155065 is 5605516111.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 502701241 + 613453824 = 22421^2 + 24768^2 .

It is a cyclic number.

It is not a de Polignac number, because 1116155065 - 2⁷ = 1116154937 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 111615502 + ... + 111615511.

It is an arithmetic number, because the mean of its divisors is an integer number (334846521).

Almost surely, 2^1116155065 is an apocalyptic number.

It is an amenable number.

1116155065 is a deficient number, since it is larger than the sum of its proper divisors (223231019).

1116155065 is an equidigital number, since it uses as much as digits as its factorization.

1116155065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223231018.

The product of its (nonzero) digits is 4500, while the sum is 31.

The square root of 1116155065 is about 33408.9069710459. The cubic root of 1116155065 is about 1037.3090767856.

The spelling of 1116155065 in words is "one billion, one hundred sixteen million, one hundred fifty-five thousand, sixty-five".