1116505510665 has 64 divisors (see below), whose sum is σ = 1978230988800. Its totient is φ = 534852578304.

The previous prime is 1116505510639. The next prime is 1116505510669. The reversal of 1116505510665 is 5660155056111.

It is not a de Polignac number, because 1116505510665 - 2¹² = 1116505506569 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1116505510669) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2357916 + ... + 2791554.

It is an arithmetic number, because the mean of its divisors is an integer number (30909859200).

Almost surely, 2^{1116505510665} is an apocalyptic number.

1116505510665 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1116505510665 is a deficient number, since it is larger than the sum of its proper divisors (861725478135).

1116505510665 is a wasteful number, since it uses less digits than its factorization.

1116505510665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 434126.

The product of its (nonzero) digits is 135000, while the sum is 42.

The spelling of 1116505510665 in words is "one trillion, one hundred sixteen billion, five hundred five million, five hundred ten thousand, six hundred sixty-five".