329151608081 has 2 divisors, whose sum is σ = 329151608082. Its totient is φ = 329151608080.

The previous prime is 329151608053. The next prime is 329151608089. The reversal of 329151608081 is 180806151923.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 317121028225 + 12030579856 = 563135^2 + 109684^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-329151608081 is a prime.

It is a super-2 number, since 2×329151608081² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (329151608089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 164575804040 + 164575804041.

It is an arithmetic number, because the mean of its divisors is an integer number (164575804041).

Almost surely, 2^329151608081 is an apocalyptic number.

It is an amenable number.

329151608081 is a deficient number, since it is larger than the sum of its proper divisors (1).

329151608081 is an equidigital number, since it uses as much as digits as its factorization.

329151608081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 103680, while the sum is 44.

The spelling of 329151608081 in words is "three hundred twenty-nine billion, one hundred fifty-one million, six hundred eight thousand, eighty-one".