86666248830866 has 16 divisors (see below), whose sum is σ = 137069895384000. Its totient is φ = 40983898698288.

The previous prime is 86666248830841. The next prime is 86666248830881. The reversal of 86666248830866 is 66803884266668.

It is a super-2 number, since 2×86666248830866² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1903725785 + ... + 1903771308.

It is an arithmetic number, because the mean of its divisors is an integer number (8566868461500).

Almost surely, 2^{86666248830866} is an apocalyptic number.

86666248830866 is a deficient number, since it is larger than the sum of its proper divisors (50403646553134).

86666248830866 is a wasteful number, since it uses less digits than its factorization.

86666248830866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3807497713.

The product of its (nonzero) digits is 4586471424, while the sum is 77.

The spelling of 86666248830866 in words is "eighty-six trillion, six hundred sixty-six billion, two hundred forty-eight million, eight hundred thirty thousand, eight hundred sixty-six".