108666660877 has 2 divisors, whose sum is σ = 108666660878. Its totient is φ = 108666660876.

The previous prime is 108666660859. The next prime is 108666660899. The reversal of 108666660877 is 778066666801.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 108666485316 + 175561 = 329646^2 + 419^2 .

It is a cyclic number.

It is not a de Polignac number, because 108666660877 - 2¹⁹ = 108666136589 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (108666660847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54333330438 + 54333330439.

It is an arithmetic number, because the mean of its divisors is an integer number (54333330439).

Almost surely, 2^108666660877 is an apocalyptic number.

It is an amenable number.

108666660877 is a deficient number, since it is larger than the sum of its proper divisors (1).

108666660877 is an equidigital number, since it uses as much as digits as its factorization.

108666660877 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24385536, while the sum is 61.

The spelling of 108666660877 in words is "one hundred eight billion, six hundred sixty-six million, six hundred sixty thousand, eight hundred seventy-seven".