671226162073 has 2 divisors, whose sum is σ = 671226162074. Its totient is φ = 671226162072.

The previous prime is 671226162031. The next prime is 671226162143. The reversal of 671226162073 is 370261622176.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 670569367689 + 656794384 = 818883^2 + 25628^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-671226162073 is a prime.

It is not a weakly prime, because it can be changed into another prime (671226169073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335613081036 + 335613081037.

It is an arithmetic number, because the mean of its divisors is an integer number (335613081037).

Almost surely, 2^671226162073 is an apocalyptic number.

It is an amenable number.

671226162073 is a deficient number, since it is larger than the sum of its proper divisors (1).

671226162073 is an equidigital number, since it uses as much as digits as its factorization.

671226162073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 254016, while the sum is 43.

The spelling of 671226162073 in words is "six hundred seventy-one billion, two hundred twenty-six million, one hundred sixty-two thousand, seventy-three".