166666412 has 24 divisors (see below), whose sum is σ = 321006672. Its totient is φ = 75084800.

The previous prime is 166666403. The next prime is 166666417. The reversal of 166666412 is 214666661.

166666412 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (166666417) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11789 + ... + 21732.

It is an arithmetic number, because the mean of its divisors is an integer number (13375278).

Almost surely, 2^166666412 is an apocalyptic number.

It is an amenable number.

166666412 is a deficient number, since it is larger than the sum of its proper divisors (154340260).

166666412 is a wasteful number, since it uses less digits than its factorization.

166666412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33649 (or 33647 counting only the distinct ones).

The product of its digits is 62208, while the sum is 38.

The square root of 166666412 is about 12909.9346241567. The cubic root of 166666412 is about 550.3209278520.

The spelling of 166666412 in words is "one hundred sixty-six million, six hundred sixty-six thousand, four hundred twelve".