1000166667585 has 16 divisors (see below), whose sum is σ = 1603040107776. Its totient is φ = 532497742848.

The previous prime is 1000166667527. The next prime is 1000166667587. The reversal of 1000166667585 is 5857666610001.

It is not a de Polignac number, because 1000166667585 - 2¹⁹ = 1000166143297 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1000166667587) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57771049 + ... + 57788358.

It is an arithmetic number, because the mean of its divisors is an integer number (100190006736).

Almost surely, 2^{1000166667585} is an apocalyptic number.

1000166667585 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1000166667585 is a deficient number, since it is larger than the sum of its proper divisors (602873440191).

1000166667585 is a wasteful number, since it uses less digits than its factorization.

1000166667585 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115559992.

The product of its (nonzero) digits is 1814400, while the sum is 51.

The spelling of 1000166667585 in words is "one trillion, one hundred sixty-six million, six hundred sixty-seven thousand, five hundred eighty-five".