136256549839536 has 160 divisors (see below), whose sum is σ = 403764688104448. Its totient is φ = 38787093181440.

The previous prime is 136256549839513. The next prime is 136256549839583. The reversal of 136256549839536 is 635938945652631.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 124406781 + ... + 125497251.

Almost surely, 2^{136256549839536} is an apocalyptic number.

136256549839536 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 136256549839536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (201882344052224).

136256549839536 is an abundant number, since it is smaller than the sum of its proper divisors (267508138264912).

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

136256549839536 is a wasteful number, since it uses less digits than its factorization.

136256549839536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1091859 (or 1091853 counting only the distinct ones).

The product of its digits is 3779136000, while the sum is 75.

The spelling of 136256549839536 in words is "one hundred thirty-six trillion, two hundred fifty-six billion, five hundred forty-nine million, eight hundred thirty-nine thousand, five hundred thirty-six".