766512606321 has 24 divisors (see below), whose sum is σ = 1380386339904. Its totient is φ = 398188366560.

The previous prime is 766512606281. The next prime is 766512606323. The reversal of 766512606321 is 123606215667.

766512606321 is a `hidden beast` number, since 7 + 6 + 6 + 5 + 1 + 2 + 6 + 0 + 632 + 1 = 666.

It is not a de Polignac number, because 766512606321 - 2¹⁴ = 766512589937 is a prime.

It is not an unprimeable number, because it can be changed into a prime (766512606323) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 553038706 + ... + 553040091.

It is an arithmetic number, because the mean of its divisors is an integer number (57516097496).

Almost surely, 2^766512606321 is an apocalyptic number.

It is an amenable number.

766512606321 is a deficient number, since it is larger than the sum of its proper divisors (613873733583).

766512606321 is a wasteful number, since it uses less digits than its factorization.

766512606321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1106078821 (or 1106078818 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 45.

The spelling of 766512606321 in words is "seven hundred sixty-six billion, five hundred twelve million, six hundred six thousand, three hundred twenty-one".