166242684 has 12 divisors (see below), whose sum is σ = 387899624. Its totient is φ = 55414224.

The previous prime is 166242683. The next prime is 166242701. The reversal of 166242684 is 486242661.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166242683) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6926767 + ... + 6926790.

Almost surely, 2^166242684 is an apocalyptic number.

It is an amenable number.

166242684 is an abundant number, since it is smaller than the sum of its proper divisors (221656940).

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

166242684 is a wasteful number, since it uses less digits than its factorization.

166242684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13853564 (or 13853562 counting only the distinct ones).

The product of its digits is 110592, while the sum is 39.

The square root of 166242684 is about 12893.5132527950. The cubic root of 166242684 is about 549.8541585764.

The spelling of 166242684 in words is "one hundred sixty-six million, two hundred forty-two thousand, six hundred eighty-four".