136678665088 has 384 divisors, whose sum is σ = 355649356800. Its totient is φ = 51902484480.

The previous prime is 136678665077. The next prime is 136678665131. The reversal of 136678665088 is 880566876631.

It is a Harshad number since it is a multiple of its sum of digits (64).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 128820078 + ... + 128821138.

It is an arithmetic number, because the mean of its divisors is an integer number (926170200).

Almost surely, 2^136678665088 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 136678665088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (177824678400).

136678665088 is an abundant number, since it is smaller than the sum of its proper divisors (218970691712).

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

136678665088 is a wasteful number, since it uses less digits than its factorization.

136678665088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1178 (or 1159 counting only the distinct ones).

The product of its (nonzero) digits is 69672960, while the sum is 64.

The spelling of 136678665088 in words is "one hundred thirty-six billion, six hundred seventy-eight million, six hundred sixty-five thousand, eighty-eight".