2144771966017 has 4 divisors (see below), whose sum is σ = 2144834079700. Its totient is φ = 2144709852336.

The previous prime is 2144771966011. The next prime is 2144771966021. The reversal of 2144771966017 is 7106691774412.

It is a Cunningham number, because it is equal to 1464504²+1.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2065072465296 + 79699500721 = 1437036^2 + 282311^2 .

It is a cyclic number.

It is not a de Polignac number, because 2144771966017 - 2²⁷ = 2144637748289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2144771966011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31005018 + ... + 31074115.

It is an arithmetic number, because the mean of its divisors is an integer number (536208519925).

Almost surely, 2^{2144771966017} is an apocalyptic number.

It is an amenable number.

2144771966017 is a deficient number, since it is larger than the sum of its proper divisors (62113683).

2144771966017 is an equidigital number, since it uses as much as digits as its factorization.

2144771966017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62113682.

The product of its (nonzero) digits is 3556224, while the sum is 55.

The spelling of 2144771966017 in words is "two trillion, one hundred forty-four billion, seven hundred seventy-one million, nine hundred sixty-six thousand, seventeen".