770776375666 has 16 divisors (see below), whose sum is σ = 1261321306848. Its totient is φ = 350338766400.

The previous prime is 770776375609. The next prime is 770776375679. The reversal of 770776375666 is 666573677077.

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, 138615 + ... + 1249306.

It is an arithmetic number, because the mean of its divisors is an integer number (78832581678).

Almost surely, 2^770776375666 is an apocalyptic number.

770776375666 is a deficient number, since it is larger than the sum of its proper divisors (490544931182).

770776375666 is a wasteful number, since it uses less digits than its factorization.

770776375666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1413177.

The product of its (nonzero) digits is 326728080, while the sum is 67.

The spelling of 770776375666 in words is "seven hundred seventy billion, seven hundred seventy-six million, three hundred seventy-five thousand, six hundred sixty-six".