1600872220249 has 2 divisors, whose sum is σ = 1600872220250. Its totient is φ = 1600872220248.

The previous prime is 1600872220153. The next prime is 1600872220301. The reversal of 1600872220249 is 9420222780061.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1478274200649 + 122598019600 = 1215843^2 + 350140^2 .

It is a cyclic number.

It is not a de Polignac number, because 1600872220249 - 2²⁵ = 1600838665817 is a prime.

It is not a weakly prime, because it can be changed into another prime (1600872227249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 800436110124 + 800436110125.

It is an arithmetic number, because the mean of its divisors is an integer number (800436110125).

Almost surely, 2^{1600872220249} is an apocalyptic number.

It is an amenable number.

1600872220249 is a deficient number, since it is larger than the sum of its proper divisors (1).

1600872220249 is an equidigital number, since it uses as much as digits as its factorization.

1600872220249 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 193536, while the sum is 43.

The spelling of 1600872220249 in words is "one trillion, six hundred billion, eight hundred seventy-two million, two hundred twenty thousand, two hundred forty-nine".