766327755668 has 48 divisors (see below), whose sum is σ = 1450057801920. Its totient is φ = 353126075904.

The previous prime is 766327755653. The next prime is 766327755671. The reversal of 766327755668 is 866557723667.

It is a super-2 number, since 2×766327755668² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 766327755598 and 766327755607.

It is a congruent number.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 19194455 + ... + 19234337.

It is an arithmetic number, because the mean of its divisors is an integer number (30209537540).

Almost surely, 2^766327755668 is an apocalyptic number.

It is an amenable number.

766327755668 is a deficient number, since it is larger than the sum of its proper divisors (683730046252).

766327755668 is a wasteful number, since it uses less digits than its factorization.

766327755668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46776 (or 46774 counting only the distinct ones).

The product of its digits is 533433600, while the sum is 68.

The spelling of 766327755668 in words is "seven hundred sixty-six billion, three hundred twenty-seven million, seven hundred fifty-five thousand, six hundred sixty-eight".