136835565643 has 8 divisors (see below), whose sum is σ = 156415218912. Its totient is φ = 117263841216.

The previous prime is 136835565631. The next prime is 136835565677. The reversal of 136835565643 is 346565538631.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-136835565643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (136835565043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1945180 + ... + 2014297.

It is an arithmetic number, because the mean of its divisors is an integer number (19551902364).

Almost surely, 2^136835565643 is an apocalyptic number.

136835565643 is a deficient number, since it is larger than the sum of its proper divisors (19579653269).

136835565643 is an equidigital number, since it uses as much as digits as its factorization.

136835565643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3964421.

The product of its digits is 23328000, while the sum is 55.

The spelling of 136835565643 in words is "one hundred thirty-six billion, eight hundred thirty-five million, five hundred sixty-five thousand, six hundred forty-three".