80185642664568 has 384 divisors, whose sum is σ = 239492304979200. Its totient is φ = 22301535707136.

The previous prime is 80185642664551. The next prime is 80185642664609. The reversal of 80185642664568 is 86546624658108.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2149211898 + ... + 2149249206.

It is an arithmetic number, because the mean of its divisors is an integer number (623677877550).

Almost surely, 2^{80185642664568} 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 80185642664568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (119746152489600).

80185642664568 is an abundant number, since it is smaller than the sum of its proper divisors (159306662314632).

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

80185642664568 is a wasteful number, since it uses less digits than its factorization.

80185642664568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37739 (or 37728 counting only the distinct ones).

The product of its (nonzero) digits is 530841600, while the sum is 69.

The spelling of 80185642664568 in words is "eighty trillion, one hundred eighty-five billion, six hundred forty-two million, six hundred sixty-four thousand, five hundred sixty-eight".