766705551959 has 2 divisors, whose sum is σ = 766705551960. Its totient is φ = 766705551958.

The previous prime is 766705551919. The next prime is 766705551973. The reversal of 766705551959 is 959155507667.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 766705551959 - 2³⁶ = 697986075223 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 766705551895 and 766705551904.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (766705551919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 383352775979 + 383352775980.

It is an arithmetic number, because the mean of its divisors is an integer number (383352775980).

Almost surely, 2^766705551959 is an apocalyptic number.

766705551959 is a deficient number, since it is larger than the sum of its proper divisors (1).

766705551959 is an equidigital number, since it uses as much as digits as its factorization.

766705551959 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 89302500, while the sum is 65.

The spelling of 766705551959 in words is "seven hundred sixty-six billion, seven hundred five million, five hundred fifty-one thousand, nine hundred fifty-nine".