136638534066 has 8 divisors (see below), whose sum is σ = 273277068144. Its totient is φ = 45546178020.

The previous prime is 136638534041. The next prime is 136638534077. The reversal of 136638534066 is 660435836631.

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

136638534066 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11386544500 + ... + 11386544511.

It is an arithmetic number, because the mean of its divisors is an integer number (34159633518).

Almost surely, 2^136638534066 is an apocalyptic number.

136638534066 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.

136638534066 is a wasteful number, since it uses less digits than its factorization.

136638534066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22773089016.

The product of its (nonzero) digits is 5598720, while the sum is 51.

The spelling of 136638534066 in words is "one hundred thirty-six billion, six hundred thirty-eight million, five hundred thirty-four thousand, sixty-six".