166670020995713 has 2 divisors, whose sum is σ = 166670020995714. Its totient is φ = 166670020995712.

The previous prime is 166670020995697. The next prime is 166670020995719. The reversal of 166670020995713 is 317599020076661.

166670020995713 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 143959010917264 + 22711010078449 = 11998292^2 + 4765607^2 .

It is a cyclic number.

It is not a de Polignac number, because 166670020995713 - 2⁴ = 166670020995697 is a prime.

It is a super-2 number, since 2×166670020995713² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (166670020995719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83335010497856 + 83335010497857.

It is an arithmetic number, because the mean of its divisors is an integer number (83335010497857).

Almost surely, 2^{166670020995713} is an apocalyptic number.

It is an amenable number.

166670020995713 is a deficient number, since it is larger than the sum of its proper divisors (1).

166670020995713 is an equidigital number, since it uses as much as digits as its factorization.

166670020995713 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25719120, while the sum is 62.

The spelling of 166670020995713 in words is "one hundred sixty-six trillion, six hundred seventy billion, twenty million, nine hundred ninety-five thousand, seven hundred thirteen".