1165116679 has 4 divisors (see below), whose sum is σ = 1202701120. Its totient is φ = 1127532240.

The previous prime is 1165116661. The next prime is 1165116683. The reversal of 1165116679 is 9766115611.

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

It is a cyclic number.

It is not a de Polignac number, because 1165116679 - 2¹⁵ = 1165083911 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1165116619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18792174 + ... + 18792235.

It is an arithmetic number, because the mean of its divisors is an integer number (300675280).

Almost surely, 2^1165116679 is an apocalyptic number.

1165116679 is a deficient number, since it is larger than the sum of its proper divisors (37584441).

1165116679 is an equidigital number, since it uses as much as digits as its factorization.

1165116679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37584440.

The product of its digits is 68040, while the sum is 43.

The square root of 1165116679 is about 34133.8055159398. The cubic root of 1165116679 is about 1052.2601892123.

The spelling of 1165116679 in words is "one billion, one hundred sixty-five million, one hundred sixteen thousand, six hundred seventy-nine".