11980178 has 8 divisors (see below), whose sum is σ = 20537472. Its totient is φ = 5134356.

The previous prime is 11980169. The next prime is 11980181. The reversal of 11980178 is 87108911.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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, 427850 + ... + 427877.

It is an arithmetic number, because the mean of its divisors is an integer number (2567184).

Almost surely, 2^11980178 is an apocalyptic number.

11980178 is a deficient number, since it is larger than the sum of its proper divisors (8557294).

11980178 is an equidigital number, since it uses as much as digits as its factorization.

11980178 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 855736.

The product of its (nonzero) digits is 4032, while the sum is 35.

The square root of 11980178 is about 3461.2393734037. The cubic root of 11980178 is about 228.8167205615.

The spelling of 11980178 in words is "eleven million, nine hundred eighty thousand, one hundred seventy-eight".