765655868556541 has 2 divisors, whose sum is σ = 765655868556542. Its totient is φ = 765655868556540.

The previous prime is 765655868556511. The next prime is 765655868556571. The reversal of 765655868556541 is 145655868556567.

It is a balanced prime because it is at equal distance from previous prime (765655868556511) and next prime (765655868556571).

It can be written as a sum of positive squares in only one way, i.e., 700292750672025 + 65363117884516 = 26463045^2 + 8084746^2 .

It is a cyclic number.

It is not a de Polignac number, because 765655868556541 - 2²⁵ = 765655835002109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (765655868556511) 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, 382827934278270 + 382827934278271.

It is an arithmetic number, because the mean of its divisors is an integer number (382827934278271).

Almost surely, 2^{765655868556541} is an apocalyptic number.

It is an amenable number.

765655868556541 is a deficient number, since it is larger than the sum of its proper divisors (1).

765655868556541 is an equidigital number, since it uses as much as digits as its factorization.

765655868556541 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36288000000, while the sum is 82.

The spelling of 765655868556541 in words is "seven hundred sixty-five trillion, six hundred fifty-five billion, eight hundred sixty-eight million, five hundred fifty-six thousand, five hundred forty-one".