166364410212 has 144 divisors (see below), whose sum is σ = 564630847872. Its totient is φ = 39887562240.

The previous prime is 166364410189. The next prime is 166364410301. The reversal of 166364410212 is 212014463661.

166364410212 is a `hidden beast` number, since 1 + 6 + 6 + 3 + 644 + 1 + 0 + 2 + 1 + 2 = 666.

166364410212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 2272273 + ... + 2344344.

Almost surely, 2^166364410212 is an apocalyptic number.

166364410212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

166364410212 is an abundant number, since it is smaller than the sum of its proper divisors (398266437660).

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

166364410212 is a wasteful number, since it uses less digits than its factorization.

166364410212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4616658 (or 4616653 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

Adding to 166364410212 its reverse (212014463661), we get a palindrome (378378873873).

The spelling of 166364410212 in words is "one hundred sixty-six billion, three hundred sixty-four million, four hundred ten thousand, two hundred twelve".