136640424832 has 64 divisors (see below), whose sum is σ = 273129161760. Its totient is φ = 68090798080.

The previous prime is 136640424779. The next prime is 136640424841. The reversal of 136640424832 is 238424046631.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92261532 + ... + 92263012.

Almost surely, 2^136640424832 is an apocalyptic number.

It is an amenable number.

136640424832 is a deficient number, since it is larger than the sum of its proper divisors (136488736928).

136640424832 is a wasteful number, since it uses less digits than its factorization.

136640424832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3431 (or 3419 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 43.

The spelling of 136640424832 in words is "one hundred thirty-six billion, six hundred forty million, four hundred twenty-four thousand, eight hundred thirty-two".