116573573071721 has 4 divisors (see below), whose sum is σ = 116590544045700. Its totient is φ = 116556602097744.

The previous prime is 116573573071693. The next prime is 116573573071819. The reversal of 116573573071721 is 127170375375611.

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 21853184718121 + 94720388353600 = 4674739^2 + 9732440^2 .

It is a cyclic number.

It is not a de Polignac number, because 116573573071721 - 2¹⁴ = 116573573055337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (116573513071721) 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 in 3 ways as a sum of consecutive naturals, for example, 8485476686 + ... + 8485490423.

It is an arithmetic number, because the mean of its divisors is an integer number (29147636011425).

Almost surely, 2^{116573573071721} is an apocalyptic number.

It is an amenable number.

116573573071721 is a deficient number, since it is larger than the sum of its proper divisors (16970973979).

116573573071721 is an equidigital number, since it uses as much as digits as its factorization.

116573573071721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16970973978.

The product of its (nonzero) digits is 6482700, while the sum is 56.

The spelling of 116573573071721 in words is "one hundred sixteen trillion, five hundred seventy-three billion, five hundred seventy-three million, seventy-one thousand, seven hundred twenty-one".