116509178 has 16 divisors (see below), whose sum is σ = 184449120. Its totient is φ = 55042416.

The previous prime is 116509147. The next prime is 116509187. The reversal of 116509178 is 871905611.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11225 + ... + 18947.

It is an arithmetic number, because the mean of its divisors is an integer number (11528070).

Almost surely, 2^116509178 is an apocalyptic number.

116509178 is a deficient number, since it is larger than the sum of its proper divisors (67939942).

116509178 is a wasteful number, since it uses less digits than its factorization.

116509178 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8141.

The product of its (nonzero) digits is 15120, while the sum is 38.

The square root of 116509178 is about 10793.9417267280. The cubic root of 116509178 is about 488.4124351924.

The spelling of 116509178 in words is "one hundred sixteen million, five hundred nine thousand, one hundred seventy-eight".