118566815902 has 16 divisors (see below), whose sum is σ = 181218185712. Its totient is φ = 58160905920.

The previous prime is 118566815879. The next prime is 118566815947. The reversal of 118566815902 is 209518665811.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 118566815902.

It is a congruent number.

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, 2093218 + ... + 2149114.

It is an arithmetic number, because the mean of its divisors is an integer number (11326136607).

Almost surely, 2^118566815902 is an apocalyptic number.

118566815902 is a deficient number, since it is larger than the sum of its proper divisors (62651369810).

118566815902 is a wasteful number, since it uses less digits than its factorization.

118566815902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75963.

The product of its (nonzero) digits is 1036800, while the sum is 52.

The spelling of 118566815902 in words is "one hundred eighteen billion, five hundred sixty-six million, eight hundred fifteen thousand, nine hundred two".