118281668 has 6 divisors (see below), whose sum is σ = 206992926. Its totient is φ = 59140832.

The previous prime is 118281661. The next prime is 118281671. The reversal of 118281668 is 866182811.

It can be written as a sum of positive squares in only one way, i.e., 71605444 + 46676224 = 8462^2 + 6832^2 .

It is not an unprimeable number, because it can be changed into a prime (118281661) by changing a digit.

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 as a sum of consecutive naturals, namely, 14785205 + ... + 14785212.

It is an arithmetic number, because the mean of its divisors is an integer number (34498821).

Almost surely, 2^118281668 is an apocalyptic number.

It is an amenable number.

118281668 is a deficient number, since it is larger than the sum of its proper divisors (88711258).

118281668 is a wasteful number, since it uses less digits than its factorization.

118281668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29570421 (or 29570419 counting only the distinct ones).

The product of its digits is 36864, while the sum is 41.

The square root of 118281668 is about 10875.7375841825. The cubic root of 118281668 is about 490.8767698178.

The spelling of 118281668 in words is "one hundred eighteen million, two hundred eighty-one thousand, six hundred sixty-eight".