766583616677 has 2 divisors, whose sum is σ = 766583616678. Its totient is φ = 766583616676.

The previous prime is 766583616647. The next prime is 766583616683. The reversal of 766583616677 is 776616385667.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 439709567236 + 326874049441 = 663106^2 + 571729^2 .

It is an emirp because it is prime and its reverse (776616385667) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 766583616677 - 2¹⁶ = 766583551141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (766583616647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 383291808338 + 383291808339.

It is an arithmetic number, because the mean of its divisors is an integer number (383291808339).

Almost surely, 2^766583616677 is an apocalyptic number.

It is an amenable number.

766583616677 is a deficient number, since it is larger than the sum of its proper divisors (1).

766583616677 is an equidigital number, since it uses as much as digits as its factorization.

766583616677 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 320060160, while the sum is 68.

The spelling of 766583616677 in words is "seven hundred sixty-six billion, five hundred eighty-three million, six hundred sixteen thousand, six hundred seventy-seven".