1000017085866 has 16 divisors (see below), whose sum is σ = 2019836491488. Its totient is φ = 330038642000.

The previous prime is 1000017085861. The next prime is 1000017085877. The reversal of 1000017085866 is 6685807100001.

It is not an unprimeable number, because it can be changed into a prime (1000017085861) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 825096000 + ... + 825097211.

It is an arithmetic number, because the mean of its divisors is an integer number (126239780718).

Almost surely, 2^{1000017085866} is an apocalyptic number.

1000017085866 is an abundant number, since it is smaller than the sum of its proper divisors (1019819405622).

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

1000017085866 is a wasteful number, since it uses less digits than its factorization.

1000017085866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1650193317.

The product of its (nonzero) digits is 80640, while the sum is 42.

The spelling of 1000017085866 in words is "one trillion, seventeen million, eighty-five thousand, eight hundred sixty-six".