327287605655550 has 96 divisors (see below), whose sum is σ = 823822567516800. Its totient is φ = 85970427903360.

The previous prime is 327287605655473. The next prime is 327287605655567. The reversal of 327287605655550 is 55556506782723.

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 47 ways as a sum of consecutive naturals, for example, 241620061 + ... + 242970839.

It is an arithmetic number, because the mean of its divisors is an integer number (8581485078300).

Almost surely, 2^{327287605655550} is an apocalyptic number.

327287605655550 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 327287605655550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (411911283758400).

327287605655550 is an abundant number, since it is smaller than the sum of its proper divisors (496534961861250).

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

327287605655550 is a wasteful number, since it uses less digits than its factorization.

327287605655550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1374970 (or 1374965 counting only the distinct ones).

The product of its (nonzero) digits is 529200000, while the sum is 66.

The spelling of 327287605655550 in words is "three hundred twenty-seven trillion, two hundred eighty-seven billion, six hundred five million, six hundred fifty-five thousand, five hundred fifty".