136663543518 has 8 divisors (see below), whose sum is σ = 273327087048. Its totient is φ = 45554514504.

The previous prime is 136663543517. The next prime is 136663543529. The reversal of 136663543518 is 815345366631.

It is a sphenic number, since it is the product of 3 distinct primes.

136663543518 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136663543517) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11388628621 + ... + 11388628632.

It is an arithmetic number, because the mean of its divisors is an integer number (34165885881).

Almost surely, 2^136663543518 is an apocalyptic number.

136663543518 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

136663543518 is a wasteful number, since it uses less digits than its factorization.

136663543518 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22777257258.

The product of its digits is 4665600, while the sum is 51.

The spelling of 136663543518 in words is "one hundred thirty-six billion, six hundred sixty-three million, five hundred forty-three thousand, five hundred eighteen".