135664656443 has 8 divisors (see below), whose sum is σ = 135896785776. Its totient is φ = 135432719200.

The previous prime is 135664656431. The next prime is 135664656481. The reversal of 135664656443 is 344656466531.

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-135664656443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135664656403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1402913 + ... + 1496493.

It is an arithmetic number, because the mean of its divisors is an integer number (16987098222).

Almost surely, 2^135664656443 is an apocalyptic number.

135664656443 is a deficient number, since it is larger than the sum of its proper divisors (232129333).

135664656443 is an equidigital number, since it uses as much as digits as its factorization.

135664656443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96045.

The product of its digits is 18662400, while the sum is 53.

The spelling of 135664656443 in words is "one hundred thirty-five billion, six hundred sixty-four million, six hundred fifty-six thousand, four hundred forty-three".