620030173746161 has 2 divisors, whose sum is σ = 620030173746162. Its totient is φ = 620030173746160.

The previous prime is 620030173746091. The next prime is 620030173746173. The reversal of 620030173746161 is 161647371030026.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 333955742095936 + 286074431650225 = 18274456^2 + 16913735^2 .

It is a cyclic number.

It is not a de Polignac number, because 620030173746161 - 2¹⁴ = 620030173729777 is a prime.

It is a super-3 number, since 3×620030173746161³ (a number of 45 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (620030173740161) 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, 310015086873080 + 310015086873081.

It is an arithmetic number, because the mean of its divisors is an integer number (310015086873081).

Almost surely, 2^{620030173746161} is an apocalyptic number.

It is an amenable number.

620030173746161 is a deficient number, since it is larger than the sum of its proper divisors (1).

620030173746161 is an equidigital number, since it uses as much as digits as its factorization.

620030173746161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 762048, while the sum is 47.

The spelling of 620030173746161 in words is "six hundred twenty trillion, thirty billion, one hundred seventy-three million, seven hundred forty-six thousand, one hundred sixty-one".