328543050181 has 2 divisors, whose sum is σ = 328543050182. Its totient is φ = 328543050180.

The previous prime is 328543050167. The next prime is 328543050197. The reversal of 328543050181 is 181050345823.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 253546489156 + 74996561025 = 503534^2 + 273855^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-328543050181 is a prime.

It is a super-2 number, since 2×328543050181² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (328543050131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 164271525090 + 164271525091.

It is an arithmetic number, because the mean of its divisors is an integer number (164271525091).

Almost surely, 2^328543050181 is an apocalyptic number.

It is an amenable number.

328543050181 is a deficient number, since it is larger than the sum of its proper divisors (1).

328543050181 is an equidigital number, since it uses as much as digits as its factorization.

328543050181 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 115200, while the sum is 40.

The spelling of 328543050181 in words is "three hundred twenty-eight billion, five hundred forty-three million, fifty thousand, one hundred eighty-one".