180198000361 has 2 divisors, whose sum is σ = 180198000362. Its totient is φ = 180198000360.

The previous prime is 180198000259. The next prime is 180198000371. The reversal of 180198000361 is 163000891081.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 180179025625 + 18974736 = 424475^2 + 4356^2 .

It is a cyclic number.

It is not a de Polignac number, because 180198000361 - 2¹¹ = 180197998313 is a prime.

It is a super-2 number, since 2×180198000361² (a number of 23 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 180198000361.

It is not a weakly prime, because it can be changed into another prime (180198000371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 90099000180 + 90099000181.

It is an arithmetic number, because the mean of its divisors is an integer number (90099000181).

Almost surely, 2^180198000361 is an apocalyptic number.

It is an amenable number.

180198000361 is a deficient number, since it is larger than the sum of its proper divisors (1).

180198000361 is an equidigital number, since it uses as much as digits as its factorization.

180198000361 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 37.

The spelling of 180198000361 in words is "one hundred eighty billion, one hundred ninety-eight million, three hundred sixty-one", and thus it is an aban number.