166650240 has 256 divisors, whose sum is σ = 570628800. Its totient is φ = 41287680.

The previous prime is 166650227. The next prime is 166650247. The reversal of 166650240 is 42056661.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 166650198 and 166650207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166650247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2282844 + ... + 2282916.

Almost surely, 2^166650240 is an apocalyptic number.

166650240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 166650240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (285314400).

166650240 is an abundant number, since it is smaller than the sum of its proper divisors (403978560).

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

166650240 is a wasteful number, since it uses less digits than its factorization.

166650240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165 (or 153 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 166650240 is about 12909.3082696169. The cubic root of 166650240 is about 550.3031276690.

The spelling of 166650240 in words is "one hundred sixty-six million, six hundred fifty thousand, two hundred forty".