422697573161 has 2 divisors, whose sum is σ = 422697573162. Its totient is φ = 422697573160.

The previous prime is 422697573157. The next prime is 422697573313. The reversal of 422697573161 is 161375796224.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 400744705936 + 21952867225 = 633044^2 + 148165^2 .

It is a cyclic number.

It is not a de Polignac number, because 422697573161 - 2² = 422697573157 is a prime.

It is not a weakly prime, because it can be changed into another prime (422697578161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211348786580 + 211348786581.

It is an arithmetic number, because the mean of its divisors is an integer number (211348786581).

Almost surely, 2^422697573161 is an apocalyptic number.

It is an amenable number.

422697573161 is a deficient number, since it is larger than the sum of its proper divisors (1).

422697573161 is an equidigital number, since it uses as much as digits as its factorization.

422697573161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3810240, while the sum is 53.

The spelling of 422697573161 in words is "four hundred twenty-two billion, six hundred ninety-seven million, five hundred seventy-three thousand, one hundred sixty-one".