166411216701 has 24 divisors (see below), whose sum is σ = 244026432000. Its totient is φ = 109254949056.

The previous prime is 166411216669. The next prime is 166411216711. The reversal of 166411216701 is 107612114661.

166411216701 is a `hidden beast` number, since 1 + 6 + 641 + 1 + 2 + 1 + 6 + 7 + 0 + 1 = 666.

It is not a de Polignac number, because 166411216701 - 2⁵ = 166411216669 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166411216711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2275300 + ... + 2347298.

It is an arithmetic number, because the mean of its divisors is an integer number (10167768000).

Almost surely, 2^166411216701 is an apocalyptic number.

It is an amenable number.

166411216701 is a deficient number, since it is larger than the sum of its proper divisors (77615215299).

166411216701 is a wasteful number, since it uses less digits than its factorization.

166411216701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75905 (or 75902 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The spelling of 166411216701 in words is "one hundred sixty-six billion, four hundred eleven million, two hundred sixteen thousand, seven hundred one".