796566663649 has 2 divisors, whose sum is σ = 796566663650. Its totient is φ = 796566663648.

The previous prime is 796566663631. The next prime is 796566663667. The reversal of 796566663649 is 946366665697.

It is a balanced prime because it is at equal distance from previous prime (796566663631) and next prime (796566663667).

It can be written as a sum of positive squares in only one way, i.e., 564950663424 + 231616000225 = 751632^2 + 481265^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-796566663649 is a prime.

It is a super-3 number, since 3×796566663649³ (a number of 37 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (796566663679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 398283331824 + 398283331825.

It is an arithmetic number, because the mean of its divisors is an integer number (398283331825).

Almost surely, 2^796566663649 is an apocalyptic number.

It is an amenable number.

796566663649 is a deficient number, since it is larger than the sum of its proper divisors (1).

796566663649 is an equidigital number, since it uses as much as digits as its factorization.

796566663649 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1587237120, while the sum is 73.

The spelling of 796566663649 in words is "seven hundred ninety-six billion, five hundred sixty-six million, six hundred sixty-three thousand, six hundred forty-nine".