766605431568 has 40 divisors (see below), whose sum is σ = 1980681510016. Its totient is φ = 255498480000.

The previous prime is 766605431549. The next prime is 766605431591. The reversal of 766605431568 is 865134506667.

766605431568 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 806683 + ... + 1477818.

Almost surely, 2^766605431568 is an apocalyptic number.

It is an amenable number.

766605431568 is an abundant number, since it is smaller than the sum of its proper divisors (1214076078448).

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

766605431568 is a wasteful number, since it uses less digits than its factorization.

766605431568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2291503 (or 2291497 counting only the distinct ones).

The product of its (nonzero) digits is 21772800, while the sum is 57.

The spelling of 766605431568 in words is "seven hundred sixty-six billion, six hundred five million, four hundred thirty-one thousand, five hundred sixty-eight".