80566135500000 has 336 divisors, whose sum is σ = 267700898384640. Its totient is φ = 21212318400000.

The previous prime is 80566135499957. The next prime is 80566135500047. The reversal of 80566135500000 is 553166508.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 118160059 + ... + 118839941.

It is an arithmetic number, because the mean of its divisors is an integer number (796728864240).

Almost surely, 2^{80566135500000} is an apocalyptic number.

80566135500000 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80566135500000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (133850449192320).

80566135500000 is an abundant number, since it is smaller than the sum of its proper divisors (187134762884640).

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

80566135500000 is an frugal number, since it uses more digits than its factorization.

80566135500000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 680005 (or 679972 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 39.

Adding to 80566135500000 its reverse (553166508), we get a palindrome (80566688666508).

The spelling of 80566135500000 in words is "eighty trillion, five hundred sixty-six billion, one hundred thirty-five million, five hundred thousand".