676768665564 has 48 divisors (see below), whose sum is σ = 1756815110400. Its totient is φ = 225302881968.

The previous prime is 676768665541. The next prime is 676768665571. The reversal of 676768665564 is 465566867676.

676768665564 is a `hidden beast` number, since 6 + 7 + 6 + 7 + 6 + 8 + 66 + 556 + 4 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 676768665492 and 676768665501.

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, 3896184 + ... + 4066175.

It is an arithmetic number, because the mean of its divisors is an integer number (36600314800).

Almost surely, 2^676768665564 is an apocalyptic number.

It is an amenable number.

676768665564 is an abundant number, since it is smaller than the sum of its proper divisors (1080046444836).

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

676768665564 is a wasteful number, since it uses less digits than its factorization.

676768665564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7963159 (or 7963151 counting only the distinct ones).

The product of its digits is 1828915200, while the sum is 72.

The spelling of 676768665564 in words is "six hundred seventy-six billion, seven hundred sixty-eight million, six hundred sixty-five thousand, five hundred sixty-four".