118518063658 has 4 divisors (see below), whose sum is σ = 177777095490. Its totient is φ = 59259031828.

The previous prime is 118518063563. The next prime is 118518063673. The reversal of 118518063658 is 856360815811.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 104524829809 + 13993233849 = 323303^2 + 118293^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 29629515913 + ... + 29629515916.

Almost surely, 2^118518063658 is an apocalyptic number.

118518063658 is a deficient number, since it is larger than the sum of its proper divisors (59259031832).

118518063658 is an equidigital number, since it uses as much as digits as its factorization.

118518063658 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59259031831.

The product of its (nonzero) digits is 1382400, while the sum is 52.

The spelling of 118518063658 in words is "one hundred eighteen billion, five hundred eighteen million, sixty-three thousand, six hundred fifty-eight".