166630430 has 16 divisors (see below), whose sum is σ = 317578320. Its totient is φ = 62731392.

The previous prime is 166630427. The next prime is 166630439. The reversal of 166630430 is 34036661.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 166630393 and 166630402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166630439) 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, 489920 + ... + 490259.

It is an arithmetic number, because the mean of its divisors is an integer number (19848645).

Almost surely, 2^166630430 is an apocalyptic number.

166630430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

166630430 is a deficient number, since it is larger than the sum of its proper divisors (150947890).

166630430 is a wasteful number, since it uses less digits than its factorization.

166630430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 980203.

The product of its (nonzero) digits is 7776, while the sum is 29.

The square root of 166630430 is about 12908.5409710006. The cubic root of 166630430 is about 550.2813216459.

The spelling of 166630430 in words is "one hundred sixty-six million, six hundred thirty thousand, four hundred thirty".