86566844360216 has 64 divisors (see below), whose sum is σ = 181912173835680. Its totient is φ = 38272881991680.

The previous prime is 86566844360197. The next prime is 86566844360317. The reversal of 86566844360216 is 61206344866568.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5976446 + ... + 14451698.

Almost surely, 2^{86566844360216} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 86566844360216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90956086917840).

86566844360216 is an abundant number, since it is smaller than the sum of its proper divisors (95345329475464).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

86566844360216 is a wasteful number, since it uses less digits than its factorization.

86566844360216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8478444 (or 8478440 counting only the distinct ones).

The product of its (nonzero) digits is 238878720, while the sum is 65.

The spelling of 86566844360216 in words is "eighty-six trillion, five hundred sixty-six billion, eight hundred forty-four million, three hundred sixty thousand, two hundred sixteen".