766556366872 has 32 divisors (see below), whose sum is σ = 1501290554400. Its totient is φ = 366468850944.

The previous prime is 766556366867. The next prime is 766556366921. The reversal of 766556366872 is 278663655667.

It is a junction number, because it is equal to n+sod(n) for n = 766556366798 and 766556366807.

It is a congruent number.

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, 16015533 + ... + 16063324.

It is an arithmetic number, because the mean of its divisors is an integer number (46915329825).

Almost surely, 2^766556366872 is an apocalyptic number.

It is an amenable number.

766556366872 is a deficient number, since it is larger than the sum of its proper divisors (734734187528).

766556366872 is a wasteful number, since it uses less digits than its factorization.

766556366872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32078995 (or 32078991 counting only the distinct ones).

The product of its digits is 457228800, while the sum is 67.

The spelling of 766556366872 in words is "seven hundred sixty-six billion, five hundred fifty-six million, three hundred sixty-six thousand, eight hundred seventy-two".