327638045556 has 48 divisors (see below), whose sum is σ = 859666113600. Its totient is φ = 107896863456.

The previous prime is 327638045549. The next prime is 327638045599. The reversal of 327638045556 is 655540836723.

327638045556 is a `hidden beast` number, since 3 + 2 + 7 + 6 + 3 + 80 + 4 + 5 + 556 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18266251 + ... + 18284178.

It is an arithmetic number, because the mean of its divisors is an integer number (17909710700).

Almost surely, 2^327638045556 is an apocalyptic number.

327638045556 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

327638045556 is an abundant number, since it is smaller than the sum of its proper divisors (532028068044).

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

327638045556 is a wasteful number, since it uses less digits than its factorization.

327638045556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36550525 (or 36550517 counting only the distinct ones).

The product of its (nonzero) digits is 18144000, while the sum is 54.

The spelling of 327638045556 in words is "three hundred twenty-seven billion, six hundred thirty-eight million, forty-five thousand, five hundred fifty-six".