675766566 has 24 divisors (see below), whose sum is σ = 1464961680. Its totient is φ = 225132336.

The previous prime is 675766529. The next prime is 675766571. The reversal of 675766566 is 665667576.

675766566 is a `hidden beast` number, since 6 + 7 + 5 + 76 + 6 + 566 = 666.

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, 27271 + ... + 45773.

It is an arithmetic number, because the mean of its divisors is an integer number (61040070).

Almost surely, 2^675766566 is an apocalyptic number.

675766566 is an abundant number, since it is smaller than the sum of its proper divisors (789195114).

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

675766566 is a wasteful number, since it uses less digits than its factorization.

675766566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20540 (or 20537 counting only the distinct ones).

The product of its digits is 9525600, while the sum is 54.

The square root of 675766566 is about 25995.5104970070. The cubic root of 675766566 is about 877.5372628879.

The spelling of 675766566 in words is "six hundred seventy-five million, seven hundred sixty-six thousand, five hundred sixty-six".