118085665 has 32 divisors (see below), whose sum is σ = 155888640. Its totient is φ = 85536000.

The previous prime is 118085663. The next prime is 118085683. The reversal of 118085665 is 566580811.

It is not a de Polignac number, because 118085665 - 2¹ = 118085663 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (118085663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 297247 + ... + 297643.

It is an arithmetic number, because the mean of its divisors is an integer number (4871520).

Almost surely, 2^118085665 is an apocalyptic number.

It is an amenable number.

118085665 is a deficient number, since it is larger than the sum of its proper divisors (37802975).

118085665 is a wasteful number, since it uses less digits than its factorization.

118085665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 553.

The product of its (nonzero) digits is 57600, while the sum is 40.

The square root of 118085665 is about 10866.7228270532. The cubic root of 118085665 is about 490.6054780932.

The spelling of 118085665 in words is "one hundred eighteen million, eighty-five thousand, six hundred sixty-five".