116218278 has 24 divisors (see below), whose sum is σ = 274698216. Its totient is φ = 35217600.

The previous prime is 116218253. The next prime is 116218279. The reversal of 116218278 is 872812611.

116218278 is a `hidden beast` number, since 1 + 1 + 621 + 8 + 27 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (116218279) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 293283 + ... + 293678.

It is an arithmetic number, because the mean of its divisors is an integer number (11445759).

Almost surely, 2^116218278 is an apocalyptic number.

116218278 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

116218278 is an abundant number, since it is smaller than the sum of its proper divisors (158479938).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

116218278 is a wasteful number, since it uses less digits than its factorization.

116218278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 586980 (or 586977 counting only the distinct ones).

The product of its digits is 10752, while the sum is 36.

The square root of 116218278 is about 10780.4581535295. The cubic root of 116218278 is about 488.0056071872.

The spelling of 116218278 in words is "one hundred sixteen million, two hundred eighteen thousand, two hundred seventy-eight".