669776677966 has 24 divisors (see below), whose sum is σ = 1104378534000. Its totient is φ = 304422629280.

The previous prime is 669776677937. The next prime is 669776678009.

669776677966 is nontrivially palindromic in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 669776677966.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3668410 + ... + 3846658.

It is an arithmetic number, because the mean of its divisors is an integer number (46015772250).

Almost surely, 2^669776677966 is an apocalyptic number.

669776677966 is a deficient number, since it is larger than the sum of its proper divisors (434601856034).

669776677966 is a wasteful number, since it uses less digits than its factorization.

669776677966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193800 (or 193789 counting only the distinct ones).

The product of its digits is 9073705536, while the sum is 82.

The spelling of 669776677966 in words is "six hundred sixty-nine billion, seven hundred seventy-six million, six hundred seventy-seven thousand, nine hundred sixty-six".