670616794349569 has 2 divisors, whose sum is σ = 670616794349570. Its totient is φ = 670616794349568.

The previous prime is 670616794349527. The next prime is 670616794349603. The reversal of 670616794349569 is 965943497616076.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 563882584348944 + 106734210000625 = 23746212^2 + 10331225^2 .

It is a cyclic number.

It is not a de Polignac number, because 670616794349569 - 2³¹ = 670614646865921 is a prime.

It is a super-2 number, since 2×670616794349569² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 670616794349492 and 670616794349501.

It is not a weakly prime, because it can be changed into another prime (670616794319569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335308397174784 + 335308397174785.

It is an arithmetic number, because the mean of its divisors is an integer number (335308397174785).

Almost surely, 2^{670616794349569} is an apocalyptic number.

It is an amenable number.

670616794349569 is a deficient number, since it is larger than the sum of its proper divisors (1).

670616794349569 is an equidigital number, since it uses as much as digits as its factorization.

670616794349569 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11110659840, while the sum is 82.

The spelling of 670616794349569 in words is "six hundred seventy trillion, six hundred sixteen billion, seven hundred ninety-four million, three hundred forty-nine thousand, five hundred sixty-nine".