766705551268 has 12 divisors (see below), whose sum is σ = 1341773220060. Its totient is φ = 383341774112.

The previous prime is 766705551259. The next prime is 766705551301. The reversal of 766705551268 is 862155507667.

It can be written as a sum of positive squares in 2 ways, for example, as 457149072384 + 309556478884 = 676128^2 + 556378^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2592571 + ... + 2873122.

It is an arithmetic number, because the mean of its divisors is an integer number (111814435005).

Almost surely, 2^766705551268 is an apocalyptic number.

It is an amenable number.

766705551268 is a deficient number, since it is larger than the sum of its proper divisors (575067668792).

766705551268 is a wasteful number, since it uses less digits than its factorization.

766705551268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5500766 (or 5500764 counting only the distinct ones).

The product of its (nonzero) digits is 21168000, while the sum is 58.

The spelling of 766705551268 in words is "seven hundred sixty-six billion, seven hundred five million, five hundred fifty-one thousand, two hundred sixty-eight".