677866660699520 has 32 divisors (see below), whose sum is σ = 1620524985736320. Its totient is φ = 271146664279552.

The previous prime is 677866660699519. The next prime is 677866660699559. The reversal of 677866660699520 is 25996066668776.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 529583328032 + ... + 529583329311.

It is an arithmetic number, because the mean of its divisors is an integer number (50641405804260).

Almost surely, 2^{677866660699520} is an apocalyptic number.

It is an amenable number.

677866660699520 is an abundant number, since it is smaller than the sum of its proper divisors (942658325036800).

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

677866660699520 is a wasteful number, since it uses less digits than its factorization.

677866660699520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1059166657362 (or 1059166657350 counting only the distinct ones).

The product of its (nonzero) digits is 14814213120, while the sum is 83.

The spelling of 677866660699520 in words is "six hundred seventy-seven trillion, eight hundred sixty-six billion, six hundred sixty million, six hundred ninety-nine thousand, five hundred twenty".