118218558683877 has 16 divisors (see below), whose sum is σ = 158543550773568. Its totient is φ = 78353013664640.

The previous prime is 118218558683861. The next prime is 118218558683917. The reversal of 118218558683877 is 778386855812811.

It is a cyclic number.

It is not a de Polignac number, because 118218558683877 - 2⁴ = 118218558683861 is a prime.

It is a super-2 number, since 2×118218558683877² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118218558683857) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5226418 + ... + 16240460.

It is an arithmetic number, because the mean of its divisors is an integer number (9908971923348).

Almost surely, 2^{118218558683877} is an apocalyptic number.

It is an amenable number.

118218558683877 is a deficient number, since it is larger than the sum of its proper divisors (40324992089691).

118218558683877 is a wasteful number, since it uses less digits than its factorization.

118218558683877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11034900.

The product of its digits is 1445068800, while the sum is 78.

The spelling of 118218558683877 in words is "one hundred eighteen trillion, two hundred eighteen billion, five hundred fifty-eight million, six hundred eighty-three thousand, eight hundred seventy-seven".