766666604766 has 32 divisors (see below), whose sum is σ = 1601033241600. Its totient is φ = 244286548704.

The previous prime is 766666604729. The next prime is 766666604771. The reversal of 766666604766 is 667406666667.

It is a junction number, because it is equal to n+sod(n) for n = 766666604697 and 766666604706.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1579510 + ... + 2007033.

It is an arithmetic number, because the mean of its divisors is an integer number (50032288800).

Almost surely, 2^766666604766 is an apocalyptic number.

766666604766 is an abundant number, since it is smaller than the sum of its proper divisors (834366636834).

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

766666604766 is a wasteful number, since it uses less digits than its factorization.

766666604766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3588120.

The product of its (nonzero) digits is 329204736, while the sum is 66.

The spelling of 766666604766 in words is "seven hundred sixty-six billion, six hundred sixty-six million, six hundred four thousand, seven hundred sixty-six".