180595380655849 has 2 divisors, whose sum is σ = 180595380655850. Its totient is φ = 180595380655848.

The previous prime is 180595380655831. The next prime is 180595380655873. The reversal of 180595380655849 is 948556083595081.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 144487780374249 + 36107600281600 = 12020307^2 + 6008960^2 .

It is a cyclic number.

It is not a de Polignac number, because 180595380655849 - 2⁷ = 180595380655721 is a prime.

It is a super-2 number, since 2×180595380655849² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (180595380655819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 90297690327924 + 90297690327925.

It is an arithmetic number, because the mean of its divisors is an integer number (90297690327925).

Almost surely, 2^{180595380655849} is an apocalyptic number.

It is an amenable number.

180595380655849 is a deficient number, since it is larger than the sum of its proper divisors (1).

180595380655849 is an equidigital number, since it uses as much as digits as its factorization.

180595380655849 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1866240000, while the sum is 76.

The spelling of 180595380655849 in words is "one hundred eighty trillion, five hundred ninety-five billion, three hundred eighty million, six hundred fifty-five thousand, eight hundred forty-nine".