276199688161 has 2 divisors, whose sum is σ = 276199688162. Its totient is φ = 276199688160.

The previous prime is 276199688159. The next prime is 276199688183. The reversal of 276199688161 is 161886991672.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 209470982400 + 66728705761 = 457680^2 + 258319^2 .

It is a cyclic number.

It is not a de Polignac number, because 276199688161 - 2¹ = 276199688159 is a prime.

Together with 276199688159, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 276199688093 and 276199688102.

It is not a weakly prime, because it can be changed into another prime (276199680161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 138099844080 + 138099844081.

It is an arithmetic number, because the mean of its divisors is an integer number (138099844081).

Almost surely, 2^276199688161 is an apocalyptic number.

It is an amenable number.

276199688161 is a deficient number, since it is larger than the sum of its proper divisors (1).

276199688161 is an equidigital number, since it uses as much as digits as its factorization.

276199688161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15676416, while the sum is 64.

The spelling of 276199688161 in words is "two hundred seventy-six billion, one hundred ninety-nine million, six hundred eighty-eight thousand, one hundred sixty-one".