328032253081 has 15 divisors (see below), whose sum is σ = 355472207051. Its totient is φ = 302709655248.

The previous prime is 328032253069. The next prime is 328032253097. The reversal of 328032253081 is 180352230823.

It is a happy number.

The square root of 328032253081 is 572741.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 7 ways, for example, as 218033897481 + 109998355600 = 466941^2 + 331660^2 .

It is a de Polignac number, because none of the positive numbers 2^k-328032253081 is a prime.

It is a super-2 number, since 2×328032253081² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 328032253081.

It is not an unprimeable number, because it can be changed into a prime (328032253061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 96791535 + ... + 96794923.

Almost surely, 2^328032253081 is an apocalyptic number.

328032253081 is the 572741-st square number.

328032253081 is the 286371-st centered octagonal number.

It is an amenable number.

328032253081 is a deficient number, since it is larger than the sum of its proper divisors (27439953970).

328032253081 is an frugal number, since it uses more digits than its factorization.

328032253081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6830 (or 3402 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 37.

The spelling of 328032253081 in words is "three hundred twenty-eight billion, thirty-two million, two hundred fifty-three thousand, eighty-one".