86605632205646 has 8 divisors (see below), whose sum is σ = 132359551106904. Its totient is φ = 42485781836680.

The previous prime is 86605632205643. The next prime is 86605632205663. The reversal of 86605632205646 is 64650223650668.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86605632205643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 408517132940 + ... + 408517133151.

It is an arithmetic number, because the mean of its divisors is an integer number (16544943888363).

Almost surely, 2^{86605632205646} is an apocalyptic number.

86605632205646 is a deficient number, since it is larger than the sum of its proper divisors (45753918901258).

86605632205646 is a wasteful number, since it uses less digits than its factorization.

86605632205646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 817034266146.

The product of its (nonzero) digits is 74649600, while the sum is 59.

The spelling of 86605632205646 in words is "eighty-six trillion, six hundred five billion, six hundred thirty-two million, two hundred five thousand, six hundred forty-six".