8796666661 has 2 divisors, whose sum is σ = 8796666662. Its totient is φ = 8796666660.

The previous prime is 8796666653. The next prime is 8796666667. The reversal of 8796666661 is 1666666978.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8758152225 + 38514436 = 93585^2 + 6206^2 .

It is a cyclic number.

It is not a de Polignac number, because 8796666661 - 2³ = 8796666653 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8796666661.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8796666667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4398333330 + 4398333331.

It is an arithmetic number, because the mean of its divisors is an integer number (4398333331).

Almost surely, 2^8796666661 is an apocalyptic number.

It is an amenable number.

8796666661 is a deficient number, since it is larger than the sum of its proper divisors (1).

8796666661 is an equidigital number, since it uses as much as digits as its factorization.

8796666661 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23514624, while the sum is 61.

The square root of 8796666661 is about 93790.5467571226. The cubic root of 8796666661 is about 2064.2995207520.

The spelling of 8796666661 in words is "eight billion, seven hundred ninety-six million, six hundred sixty-six thousand, six hundred sixty-one".