327765221280 has 384 divisors, whose sum is σ = 1380066508800. Its totient is φ = 70974600192.

The previous prime is 327765221141. The next prime is 327765221291. The reversal of 327765221280 is 82122567723.

327765221280 is a `hidden beast` number, since 32 + 7 + 7 + 6 + 522 + 12 + 80 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 289329 + ... + 859791.

It is an arithmetic number, because the mean of its divisors is an integer number (3593923200).

Almost surely, 2^327765221280 is an apocalyptic number.

327765221280 is a gapful number since it is divisible by the number (30) 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 327765221280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (690033254400).

327765221280 is an abundant number, since it is smaller than the sum of its proper divisors (1052301287520).

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

327765221280 is a wasteful number, since it uses less digits than its factorization.

327765221280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 570513 (or 570499 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 45.

The spelling of 327765221280 in words is "three hundred twenty-seven billion, seven hundred sixty-five million, two hundred twenty-one thousand, two hundred eighty".