1116355565 has 32 divisors (see below), whose sum is σ = 1464167040. Its totient is φ = 812208384.

The previous prime is 1116355549. The next prime is 1116355613. The reversal of 1116355565 is 5655536111.

It is not a de Polignac number, because 1116355565 - 2⁴ = 1116355549 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1418102 + ... + 1418888.

It is an arithmetic number, because the mean of its divisors is an integer number (45755220).

Almost surely, 2^1116355565 is an apocalyptic number.

It is an amenable number.

1116355565 is a deficient number, since it is larger than the sum of its proper divisors (347811475).

1116355565 is a wasteful number, since it uses less digits than its factorization.

1116355565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1101.

The product of its digits is 67500, while the sum is 38.

The square root of 1116355565 is about 33411.9075330936. The cubic root of 1116355565 is about 1037.3711852459.

The spelling of 1116355565 in words is "one billion, one hundred sixteen million, three hundred fifty-five thousand, five hundred sixty-five".