166683630 has 16 divisors (see below), whose sum is σ = 400040784. Its totient is φ = 44448960.

The previous prime is 166683611. The next prime is 166683641. The reversal of 166683630 is 36386661.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 2778031 + ... + 2778090.

It is an arithmetic number, because the mean of its divisors is an integer number (25002549).

Almost surely, 2^166683630 is an apocalyptic number.

166683630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

166683630 is an abundant number, since it is smaller than the sum of its proper divisors (233357154).

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

166683630 is a wasteful number, since it uses less digits than its factorization.

166683630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5556131.

The product of its (nonzero) digits is 93312, while the sum is 39.

The square root of 166683630 is about 12910.6014577168. The cubic root of 166683630 is about 550.3398780799.

The spelling of 166683630 in words is "one hundred sixty-six million, six hundred eighty-three thousand, six hundred thirty".