108055991278 has 12 divisors (see below), whose sum is σ = 167481167400. Its totient is φ = 52285156140.

The previous prime is 108055991257. The next prime is 108055991297. The reversal of 108055991278 is 872199550801.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 28108378 + ... + 28112221.

It is an arithmetic number, because the mean of its divisors is an integer number (13956763950).

Almost surely, 2^108055991278 is an apocalyptic number.

108055991278 is a deficient number, since it is larger than the sum of its proper divisors (59425176122).

108055991278 is an equidigital number, since it uses as much as digits as its factorization.

108055991278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56220663 (or 56220632 counting only the distinct ones).

The product of its (nonzero) digits is 1814400, while the sum is 55.

The spelling of 108055991278 in words is "one hundred eight billion, fifty-five million, nine hundred ninety-one thousand, two hundred seventy-eight".