86605632205645 has 32 divisors (see below), whose sum is σ = 120421903974912. Its totient is φ = 58562776092672.

The previous prime is 86605632205643. The next prime is 86605632205663. The reversal of 86605632205645 is 54650223650668.

It is a cyclic number.

It is not a de Polignac number, because 86605632205645 - 2¹ = 86605632205643 is a prime.

It is a super-3 number, since 3×86605632205645³ (a number of 43 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 86605632205645.

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 31 ways as a sum of consecutive naturals, for example, 11352669 + ... + 17380861.

It is an arithmetic number, because the mean of its divisors is an integer number (3763184499216).

Almost surely, 2^{86605632205645} is an apocalyptic number.

It is an amenable number.

86605632205645 is a deficient number, since it is larger than the sum of its proper divisors (33816271769267).

86605632205645 is a wasteful number, since it uses less digits than its factorization.

86605632205645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6033901.

The product of its (nonzero) digits is 62208000, while the sum is 58.

The spelling of 86605632205645 in words is "eighty-six trillion, six hundred five billion, six hundred thirty-two million, two hundred five thousand, six hundred forty-five".