136661412344 has 16 divisors (see below), whose sum is σ = 256244352000. Its totient is φ = 68329585152.

The previous prime is 136661412331. The next prime is 136661412359. The reversal of 136661412344 is 443214166631.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 621464 + ... + 812120.

It is an arithmetic number, because the mean of its divisors is an integer number (16015272000).

Almost surely, 2^136661412344 is an apocalyptic number.

It is an amenable number.

136661412344 is a deficient number, since it is larger than the sum of its proper divisors (119582939656).

136661412344 is a wasteful number, since it uses less digits than its factorization.

136661412344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280262 (or 280258 counting only the distinct ones).

The product of its digits is 248832, while the sum is 41.

Adding to 136661412344 its reverse (443214166631), we get a palindrome (579875578975).

The spelling of 136661412344 in words is "one hundred thirty-six billion, six hundred sixty-one million, four hundred twelve thousand, three hundred forty-four".