118518063657 has 24 divisors (see below), whose sum is σ = 183915085536. Its totient is φ = 67691026368.

The previous prime is 118518063563. The next prime is 118518063673. The reversal of 118518063657 is 756360815811.

It is not a de Polignac number, because 118518063657 - 2⁷ = 118518063529 is a prime.

It is not an unprimeable number, because it can be changed into a prime (118518263657) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 99093 + ... + 496845.

It is an arithmetic number, because the mean of its divisors is an integer number (7663128564).

Almost surely, 2^118518063657 is an apocalyptic number.

It is an amenable number.

118518063657 is a deficient number, since it is larger than the sum of its proper divisors (65397021879).

118518063657 is a wasteful number, since it uses less digits than its factorization.

118518063657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399797 (or 399790 counting only the distinct ones).

The product of its (nonzero) digits is 1209600, while the sum is 51.

The spelling of 118518063657 in words is "one hundred eighteen billion, five hundred eighteen million, sixty-three thousand, six hundred fifty-seven".