136244640544 has 24 divisors (see below), whose sum is σ = 270279214128. Its totient is φ = 67602300480.

The previous prime is 136244640527. The next prime is 136244640599. The reversal of 136244640544 is 445046442631.

It is a self number, because there is not a number n which added to its sum of digits gives 136244640544.

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, 16246362 + ... + 16254745.

It is an arithmetic number, because the mean of its divisors is an integer number (11261633922).

Almost surely, 2^136244640544 is an apocalyptic number.

It is an amenable number.

136244640544 is a deficient number, since it is larger than the sum of its proper divisors (134034573584).

136244640544 is a wasteful number, since it uses less digits than its factorization.

136244640544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32501248 (or 32501240 counting only the distinct ones).

The product of its (nonzero) digits is 1105920, while the sum is 43.

The spelling of 136244640544 in words is "one hundred thirty-six billion, two hundred forty-four million, six hundred forty thousand, five hundred forty-four".