136656688361 has 8 divisors (see below), whose sum is σ = 137343745344. Its totient is φ = 135970377840.

The previous prime is 136656688349. The next prime is 136656688367. The reversal of 136656688361 is 163886656631.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 136656688361 - 2⁶ = 136656688297 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 136656688361.

It is not an unprimeable number, because it can be changed into a prime (136656688367) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 182276 + ... + 553658.

It is an arithmetic number, because the mean of its divisors is an integer number (17167968168).

Almost surely, 2^136656688361 is an apocalyptic number.

It is an amenable number.

136656688361 is a deficient number, since it is larger than the sum of its proper divisors (687056983).

136656688361 is a wasteful number, since it uses less digits than its factorization.

136656688361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373231.

The product of its digits is 22394880, while the sum is 59.

The spelling of 136656688361 in words is "one hundred thirty-six billion, six hundred fifty-six million, six hundred eighty-eight thousand, three hundred sixty-one".