166031000 has 32 divisors (see below), whose sum is σ = 388514880. Its totient is φ = 66412000.

The previous prime is 166030979. The next prime is 166031011. The reversal of 166031000 is 130661.

It is a super-2 number, since 2×166031000² = 55132585922000000, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 166031000.

It is a congruent number.

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, 82016 + ... + 84015.

It is an arithmetic number, because the mean of its divisors is an integer number (12141090).

Almost surely, 2^166031000 is an apocalyptic number.

166031000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

166031000 is an abundant number, since it is smaller than the sum of its proper divisors (222483880).

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

166031000 is a wasteful number, since it uses less digits than its factorization.

166031000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166052 (or 166038 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 166031000 is about 12885.3017038795. The cubic root of 166031000 is about 549.6206750858.

Adding to 166031000 its reverse (130661), we get a palindrome (166161661).

The spelling of 166031000 in words is "one hundred sixty-six million, thirty-one thousand".