420057192161 has 2 divisors, whose sum is σ = 420057192162. Its totient is φ = 420057192160.

The previous prime is 420057192143. The next prime is 420057192179. The reversal of 420057192161 is 161291750024.

It is a balanced prime because it is at equal distance from previous prime (420057192143) and next prime (420057192179).

It can be written as a sum of positive squares in only one way, i.e., 400163782225 + 19893409936 = 632585^2 + 141044^2 .

It is a cyclic number.

It is not a de Polignac number, because 420057192161 - 2³⁰ = 418983450337 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (420057692161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210028596080 + 210028596081.

It is an arithmetic number, because the mean of its divisors is an integer number (210028596081).

Almost surely, 2^420057192161 is an apocalyptic number.

It is an amenable number.

420057192161 is a deficient number, since it is larger than the sum of its proper divisors (1).

420057192161 is an equidigital number, since it uses as much as digits as its factorization.

420057192161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30240, while the sum is 38.

The spelling of 420057192161 in words is "four hundred twenty billion, fifty-seven million, one hundred ninety-two thousand, one hundred sixty-one".