86665520897088 has 224 divisors, whose sum is σ = 262700335005696. Its totient is φ = 24701096988672.

The previous prime is 86665520897017. The next prime is 86665520897101. The reversal of 86665520897088 is 88079802556668.

It is a tau number, because it is divible by the number of its divisors (224).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4425538945 + ... + 4425558527.

It is an arithmetic number, because the mean of its divisors is an integer number (1172769352704).

Almost surely, 2^{86665520897088} 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 86665520897088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (131350167502848).

86665520897088 is an abundant number, since it is smaller than the sum of its proper divisors (176034814108608).

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

86665520897088 is a wasteful number, since it uses less digits than its factorization.

86665520897088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27481 (or 27471 counting only the distinct ones).

The product of its (nonzero) digits is 2786918400, while the sum is 78.

The spelling of 86665520897088 in words is "eighty-six trillion, six hundred sixty-five billion, five hundred twenty million, eight hundred ninety-seven thousand, eighty-eight".