766530120197 has 2 divisors, whose sum is σ = 766530120198. Its totient is φ = 766530120196.

The previous prime is 766530120179. The next prime is 766530120211. The reversal of 766530120197 is 791021035667.

It is a happy number.

Together with previous prime (766530120179) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 726447677761 + 40082442436 = 852319^2 + 200206^2 .

It is an emirp because it is prime and its reverse (791021035667) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 766530120197 - 2⁶ = 766530120133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (766530123197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 383265060098 + 383265060099.

It is an arithmetic number, because the mean of its divisors is an integer number (383265060099).

Almost surely, 2^766530120197 is an apocalyptic number.

It is an amenable number.

766530120197 is a deficient number, since it is larger than the sum of its proper divisors (1).

766530120197 is an equidigital number, since it uses as much as digits as its factorization.

766530120197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 476280, while the sum is 47.

The spelling of 766530120197 in words is "seven hundred sixty-six billion, five hundred thirty million, one hundred twenty thousand, one hundred ninety-seven".