180099706349 has 2 divisors, whose sum is σ = 180099706350. Its totient is φ = 180099706348.

The previous prime is 180099706321. The next prime is 180099706571. The reversal of 180099706349 is 943607990081.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 150707004100 + 29392702249 = 388210^2 + 171443^2 .

It is a cyclic number.

It is not a de Polignac number, because 180099706349 - 2¹⁶ = 180099640813 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 180099706294 and 180099706303.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (180099706949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 90049853174 + 90049853175.

It is an arithmetic number, because the mean of its divisors is an integer number (90049853175).

Almost surely, 2^180099706349 is an apocalyptic number.

It is an amenable number.

180099706349 is a deficient number, since it is larger than the sum of its proper divisors (1).

180099706349 is an equidigital number, since it uses as much as digits as its factorization.

180099706349 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2939328, while the sum is 56.

The spelling of 180099706349 in words is "one hundred eighty billion, ninety-nine million, seven hundred six thousand, three hundred forty-nine".