1165116678 has 32 divisors (see below), whose sum is σ = 2545800192. Its totient is φ = 352548000.

The previous prime is 1165116661. The next prime is 1165116683. The reversal of 1165116678 is 8766115611.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33675 + ... + 58857.

It is an arithmetic number, because the mean of its divisors is an integer number (79556256).

Almost surely, 2^1165116678 is an apocalyptic number.

1165116678 is an abundant number, since it is smaller than the sum of its proper divisors (1380683514).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1165116678 is a wasteful number, since it uses less digits than its factorization.

1165116678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25900.

The product of its digits is 60480, while the sum is 42.

The square root of 1165116678 is about 34133.8055012915. The cubic root of 1165116678 is about 1052.2601889113.

The spelling of 1165116678 in words is "one billion, one hundred sixty-five million, one hundred sixteen thousand, six hundred seventy-eight".