166200216 has 64 divisors (see below), whose sum is σ = 511392000. Its totient is φ = 43832448.

The previous prime is 166200193. The next prime is 166200233. The reversal of 166200216 is 612002661.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35866 + ... + 40233.

It is an arithmetic number, because the mean of its divisors is an integer number (7990500).

Almost surely, 2^166200216 is an apocalyptic number.

It is an amenable number.

166200216 is an abundant number, since it is smaller than the sum of its proper divisors (345191784).

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

166200216 is a wasteful number, since it uses less digits than its factorization.

166200216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76128 (or 76124 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 166200216 is about 12891.8662729645. The cubic root of 166200216 is about 549.8073330669.

Adding to 166200216 its reverse (612002661), we get a palindrome (778202877).

The spelling of 166200216 in words is "one hundred sixty-six million, two hundred thousand, two hundred sixteen".