166843516386 has 16 divisors (see below), whose sum is σ = 333691848000. Its totient is φ = 55613702928.

The previous prime is 166843516369. The next prime is 166843516403. The reversal of 166843516386 is 683615348661.

It is an interprime number because it is at equal distance from previous prime (166843516369) and next prime (166843516403).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 378315 + ... + 690513.

It is an arithmetic number, because the mean of its divisors is an integer number (20855740500).

Almost surely, 2^166843516386 is an apocalyptic number.

166843516386 is an abundant number, since it is smaller than the sum of its proper divisors (166848331614).

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

166843516386 is a wasteful number, since it uses less digits than its factorization.

166843516386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401273.

The product of its digits is 14929920, while the sum is 57.

The spelling of 166843516386 in words is "one hundred sixty-six billion, eight hundred forty-three million, five hundred sixteen thousand, three hundred eighty-six".