166693012 has 6 divisors (see below), whose sum is σ = 291712778. Its totient is φ = 83346504.

The previous prime is 166692997. The next prime is 166693013. The reversal of 166693012 is 210396661.

166693012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 165997456 + 695556 = 12884^2 + 834^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166693013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20836623 + ... + 20836630.

Almost surely, 2^166693012 is an apocalyptic number.

It is an amenable number.

166693012 is a deficient number, since it is larger than the sum of its proper divisors (125019766).

166693012 is a wasteful number, since it uses less digits than its factorization.

166693012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41673257 (or 41673255 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 34.

The square root of 166693012 is about 12910.9647974115. The cubic root of 166693012 is about 550.3502034127.

The spelling of 166693012 in words is "one hundred sixty-six million, six hundred ninety-three thousand, twelve".