766913349658668 has 12 divisors (see below), whose sum is σ = 1789464482536920. Its totient is φ = 255637783219552.

The previous prime is 766913349658619. The next prime is 766913349658693. The reversal of 766913349658668 is 866856943319667.

It is a tau number, because it is divible by the number of its divisors (12).

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, 31954722902433 + ... + 31954722902456.

It is an arithmetic number, because the mean of its divisors is an integer number (149122040211410).

Almost surely, 2^{766913349658668} is an apocalyptic number.

It is an amenable number.

766913349658668 is an abundant number, since it is smaller than the sum of its proper divisors (1022551132878252).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

766913349658668 is a wasteful number, since it uses less digits than its factorization.

766913349658668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63909445804896 (or 63909445804894 counting only the distinct ones).

The product of its digits is 50791587840, while the sum is 87.

The spelling of 766913349658668 in words is "seven hundred sixty-six trillion, nine hundred thirteen billion, three hundred forty-nine million, six hundred fifty-eight thousand, six hundred sixty-eight".